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weight of each ball is in the direction of the suspending link, or passes through the joint pin from which the ball is hung. If the balls are very heavy relatively to the links, and if we neglect the friction of the mechanism, then the height ab=h, from centre of suspension to the centre of the balls, is equal to the length of an ordinary pendulum which performs a double oscillation in the same time that the governor performs one revolution. Let T be the number of revolutions of the governor per second, then

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If T increases h diminishes, and vice versú; and the governor is connected with the throttle valve by a suitable mechanism, so that when the balls rise the throttle valve is closed, and when they fall it is opened more widely.

The primary defect of this governor is that for every position of the throttle valve the balls stand at a different height, and consequently the speed of the governor and engine is different. Whenever the load on the engine changes, the balls find a new position of equilibrium, for which the speed of the engine is somewhat accelerated or retarded.

It is, therefore, only an approximate governor, and is wanting in sensitiveness. In order that this governor may have sufficient power to work the throttle-valve, the balls require to be heavy, and hence the friction at the joints of the linkwork which keeps the balls rotating is considerable, and this again diminishes the sensitiveness of the governor. Nevertheless, from its great simplicity and freedom from liability to derangement, this governor is still more generally employed than any other.

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4), the normal ca cuts the axis of the spindle so that the height of the pendulum ab = h is constant. Suppose a governor of this kind constructed for any given speed. Then, for any greater speed, the ball c will rise at once through its whole range to the top of the parabolic are, and for any fall of speed it will sink to the spindle, and the governor is strictly isochronous. When connected with a throttle valve, the balls rise or fall to that position in which the true speed of the engine is maintained, that is if the friction of the connections is neglected. In order to guide the balls in a parabolic arc, each of them may be suspended by a flexible band from a curved horn de, or may be made to slide on a curved parabolic arm projecting from the spindle. Messrs. Smith and Jackson, of Keighley, have introduced a governor in which the latter plan is adopted. In order to correct the excessive sensitiveness which is common to all truly isochronal governors, they use a moderator which consists of a small cylinder with a loosely fitting piston connected with the governor less arms. The cylinder is filled with oil, which passes from one side of the piston to the other as the piston moves. The resistance of this fluid prevents the piston moving fast, and thus checks the tendency of the governor to overrun its proper position. The piston is connected with the ball arms, not directly, but by means of a spring.

For convenience of construction the points at which the balls are suspended are often placed on either side of the central spindle, as in Figure 2. The height of the pendulum ab h is then to be measured to the point a, where the directions of the links intersect on the central spindle. The effect of this is, however, to render the governor less sensitive than the ordinary governor, for as the balls rise the point a descends, and, therefore, for a given variation of speed, and a given variation of h, the rise of the balls is less, and the throttle valve is moved distance, or else the balls act at a greater mechanical disadvantage.

Porter's governor is a loaded pendulum governor, a heavy weight e being suspended from the revolving balls by links, and moving up and down with them (Fig. 3), but through about twice the vertical height through which they move. Consequently, if w= weight of balls, and W = weight of the load c, the height h is given by the equation

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It is easy to see from this equation that in the loaded pendulum governor a given variation of speed produces a greater variation of altitude than in the common governor, and hence the former is more sensitive. To increase the sensitiveness of the governor Mr. Porter prefers to run it at a very high speed (often 350 revolutions per minute), and the vis riva of the revolving balls being then very great he makes them very small, while on the contrary the load c on the spindle is made very heavy. In consequence of the light weight of the revolving balls there is but little friction on the joints of the links which connect them

M. Farcot suspends the ball of an ordinary governor from a joint a (Fig. 5) on the other side of the spindle to that on which

Fig. 5.

the ball is placed. By suitably choosing the position of a, the ball moves over a circular are which approximately coincides with the parabolic are of a parabolic governor. This governor is therefore more sensitive than an ordinary governor. Mr. Widmarsh, of Bristol, obtains an approximate parabolic motion

a

Fig. 3.

to the spindle, and this is still further reduced by making these joints much longer than usual, so as to prevent any binding or wedging action. This governor has been found to control the speed of engines in a very perfect manner.

Fig. 6.

of the ball in another way, shown in Fig. 6. Instead of placing the ball at the end b of the link a b, he places it on a bent link be, the end c of which slides up and down the spindle. Produce a b, and draw c d perpendicular to the spindle. Then, the

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resultant of the weight and centrifugal force of the ball must pass through d and through the centre of the ball, when equilibrium is established. Consequently, if a line is drawn horizontally through the centre of the ball, meeting the spindle in f, ef is the virtual height h of the conical pendulum. If the ball rises, the point e rises also. Siemens's chronometric governor. A governor on an entirely new principle has been invented by Mr. C. W. Siemens, and has already been largely applied. It consists of a casing containing liquid, such as water or oil, in which a cup of a parabolic form, carried by a central spindle, is partially immersed. The cup is open at the bottom and is furnished with a series of vanes, attached around it externally just below the rim, another set of vanes being attached to the outer casing on a level with the upper edge of the cup. When the cup is rotated rapidly, the surface of the liquid contained in it assumes a form approximating to that of the cup, and eventually part of the liquid escapes over the edges and is replaced by a fresh supply drawn in through the bottom of the cup. The liquid flowing over the edge of the cup is caught by the vanes fixed to the external casing, and is by them thrown against the vanes on the outside of the cup. The resistance thus caused, together with the power absorbed in setting in motion the fresh liquid taken into the cup, makes the total resistance to the motion of the cup, which is constant at any given speed. Thus, if the power employed to drive the spindle is constant, the speed of the governor will be constant. The constant power for driving the governor is obtained by differential wheels. A vertical spindle driven from the engine carries an annular ring on the interior of which teeth are formed, two small pinions work in this annular wheel, and at the same time gear into a pinion on the governor. The two pinions can rotate round the axis of the arrangement, but a weight tends to draw them in the opposite direction to that in which they tend to turn, in consequence of the driving pressure on the teeth. Supposing the engine and governor to run at the same speed, these pinions remain stationary, merely transmitting power from the engine to the governor. But if the engine increases in speed, the governor running at the same speed, the pinions rotate to a new position, at the same time closing the throttle valve. This governor acts with very great rapidity. Two-thirds of the load on an engine may be suddenly removed, without causing any sensible change in its speed. The resistance of this governor to change of speed may be made very great, so that it can be employed to regulate the speed of the engine by acting on the link motion or cut-off valve. A very large governor of this kind has been adopted to regulate the speed of a series of treadmills in the Liverpool gaol. These treadmills are employed to drive weaving machinery and the fluctuations of power are very great and very sudden. In this case the governor itself absorbs all the surplus power which may be expended on the wheels, above that required to drive the machinery. It is found that when the number of men working on the wheels is instantly increased from 40 to 216 there is no sensible fluctuation of speed. (Transactions of Inst. of Mechanical Engineers, 1866, and Engineering, vol. i.)

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uniformity of speed is not requisite. The chief use of a marine governor is to prevent the racing of the engines, without otherwise controlling the speed. The prevention of racing is important; (1), in order to prevent liability to accident to the engines; and (2), to economise the steam, or what is the same thing, the fuel, which would otherwise be wasted, when the engine is running fast and at the same time doing little work in the propulsion of the vessel.

The common two-ball governor is inapplicable on shipboard, because the varying position it assumes during the rolling and pitching of the vessel, and the momentum acquired by the balls during the changes of position, cause it to act on the throttle valve, irrespectively of any change of speed in the engine. Mr. Silver introduced the first balanced governor successfully applied on shipboard. It consisted of an arm attached at its centre by a

Fig. 7.

joint to a horizontal revolving spindle (Fig. 7), and having a heavy ball at each end. This arm was drawn towards the spindle by the thrust of a spiral spring, whilst the centrifugal force tended to cause the arm to diverge from the spindle. When revolving, the balls take a definite position of equilibrium for any given speed, under the action of these two forces, as in the ordinary gravity governor. The balls, however, tend to revolve parallel to the same plane, while the spindle changes its inclination to the horizon. This is corrected by adding a second arm and balls as shown in Fig. 8. This governor, known as Silver's four-ball

Fig. 8.

governor, has been largely used on shipboard. In principle it is a very perfect governor, but it is found that, when the engine suddenly changes speed, the gearing by which it is driven is liable to be broken by the inertia of the governor. If driven by a belt, the belt slips at the moment the governor is most required. Mr. Porter applies the common two-ball governor as a marine governor by placing it horizontally, and replacing the action of gravity on the balls by that of a very powerful coiled spring. Governors of this kind when originally employed, failed, but Mr. Porter has to a great extent obviated the objections arising from the varying position of the governor, due to the motion of the vessel, by running the governor at a very high speed (300 to 500 revolutions per minute). This high speed enables him to use very light balls and at the same time to have a very powerful spring, so that the influence of the vessel's motion becomes relatively small. The peculiarity of this governor consists in the fact that nearly exact equilibrium is maintained between the centrifugal force of the balls and the thrust of the spring when the spindle runs at a constant speed, but the radius of the circle of revolution of the balls is increased or diminished. The governor is, therefore, nearly isochronous, and a high degree of sensibility is attained. An increase of two or three per cent. in the speed causes the balls to move from one

Professor Sir W. Thompson has invented a centrifugal governor, applicable in certain cases, in which increase of speed is directly resisted by the creation of a frictional resistance to rotation. It consists of two heavy lead masses suspended from the revolving shaft so as to revolve with it. Around these lead masses is a gunmetal ring against which they rub, if the speed exceeds a defined limit. The lead weights are drawn inwards towards the centre of the shaft, against fixed stops, so as to be inch clear of the gunmetal ring, by powerful springs. When the machine is set in rotation with increasing velocity, the weights do not fly out from the stops until the centrifugal force overbalances the tension of the springs. But a small increase of velocity above that which first detaches them from the stops causes them to press against the gunmetal ring, creating a fric-extremity of their range to the other. tional resistance to any further increase of speed.

Governors for Marine Steam Engines. The function of a governor on board ship is essentially different from that of a governor of a land engine, and the circumstances in which it is placed are also very different. Land engines are provided with Hy-wheels which check sudden variations of speed, but they require to work with great uniformity of speed. Marine engines, with the exception of a few recently constructed, are destitute of fly-wheels, and they are liable to very sudden fluctuations of speed, from the unequal dip of the paddle-wheels when the vessel is rolling, and still more from the lifting of the screw propeller when the vessel pitches. On the other hand, great

ARTS AND SCI. DIV.SUP.

To obviate the liability to accident with the four-ball governor, Mr. Silver introduced the fly-wheel governor. In this governor a heavy fly-wheel revolves on the horizontal spindle driven by the engine. It is not connected directly with the spindle, but derives its motion from differential wheels maintained in position by a spring. If the engine suddenly races, the spindle overruns the fly-wheel and the throttle valve is closed. On the contrary, if the engine is pulled up, the fly-wheel by its inertia overruns the spindle and opens the throttle valve. It is obvious that this governor in no way regulates the average speed of the engine, but only checks sudden variations. To give it some power as a regulator of the average speed, four vanes are fixed to

4 F

1171

GRAAFIAN VESICLES.

GRAAL.

1172

the fly-wheel at right angles to its direction of revolution. The resistance of these vanes moving in the air increases as the speed of the fly-wheel increases, and the governor requires greater force to drive it. The spring through which it is driven is, therefore, more compressed as the speed of the engine becomes greater, and the throttle valve is partially closed. Meriton's governor is a fly-wheel governor, without vanes, and differing in the mode in which the fly-wheel is driven. Miller and Knill's governor is also a fly-wheel governor of a similar description. (See also a paper by Mr. Lewis Olrick in Transacking was favoured, in illustration of the doctrine of the Trinity; tions of Society of Engineers, 1862.)

GRAAFIAN VESICLES, a number of small bodies, varying in size from that of a pin's head to that of a pea, and in number from ten to twenty, which are found embedded in the substance of the ovary. They exist in a rudimentary form at an early age, and as a double vesicular membrane in the adult female.

GRAAL, called more fully the HOLY GRAAL, is variously spelt Grail, Greal, Graaus, Grasal, or Grazal, in Norman French; Grasal, Grazal, or Grazaus, in Provençal ; Grisal, in Old Catalan ; and Grial, in Old Spanish. In modern French it is written Graal, Greal, and Gréal; and in old English Graile, or Grayle, the latter of which forms occurs in the Second Book of Spenser's 'Faerie Queene.' In conformity with the opinions entertained of its etymology, or with the successive fashions of orthography, it presents, besides some other forms, the varieties of San Greal, Saint Graal, Seynt Graal, Sancgreall, Sangraal, Sang Real, and Sank Ryal. Several derivations, bearing more or less of probability-amongst others, one by which it is identified with the Hebrew harala, or ghrala, præputium, and is thus made to signify the cup or vessel used in circumcision-have been suggested for the word Graal, which, by the latest and most trustworthy criticism, has been identified with the Low Latin Gradale, or Grasale, which occurs in Ducange, or in Charpentier's Supplement, in the very numerous forms of gradale, gradalus, grasala, grayale, grassalé, grazala, grassala; with the diminutives, gradella, gracellus, grassella, grassilhia, grasellus, and grasaletus. The signification of the word is, a kind of vessel, of wood, earth, or metal; and it occurs alternatively in the sense of a large, round, and shallow vessel, of a bowl, and of a flat vessel or dish, for the use of the table. The forms given above are severally corruptions from cratella, a diminutive of the Latin crater, or cratera, which again is from the Greek кратhр, or Kратпрíа, a bowl, or mixing vessel; and the Seynt Graal, or Holy Graal, was that sacred vessel, the aggregate of whose distinctions, as collected from one tradition and another, included those of having been a gift of the queen of Sheba to Solomon, of having been used at the Last Supper, of having been stolen by one of the servants of Pilate, who used it on the occasion of publicly washing his hands before the multitude, and who afterwards gave it to Joseph of Arimathea, who collected in it the Holy Blood which flowed from the five wounds of Christ on the cross. As a vessel best adapted for this last purpose, the Holy Dish became converted at the hands of the Romance writers into the Holy Cup or Chalice; and the myth, founded on an account given in the apocryphal Gospel of Nicodemus, or the Acts of Pilate, was supported by a change of san greal, holy vessel, into sang real, royal blood, which has been wrongly interpreted as sanguis realis, real blood, a sense in which it is still occasionally adopted and perpetuated. The etymology of the San Greal, or Holy Graal, has been otherwise involved by the existence of another word written with literal identity, as Graal, a shortened form of the Low Latin graduale, or gradale, first given to the psalm, or anthem, which, between the Epistle and the Gospel, was sung in gradibus, upon the steps of the ambo, or pulpit, in the service of the Romish Church, and afterwards transferred to the Antiphonary, which contained the anthems or verses so recited. [GRADUAL, E. C. S.] For over a thousand years both ecclesiastical and profane writers are silent about the Holy Graal; but in the twelfth century it reappears invested with marvellous attributes, and as the theme of various and varying legends and romances, the outline of which we are said to owe to the genius of Walter Map, or Mapes, the clever satirist of the reign of Henry II., and which were subsequently amplified by Robiers de Borron, Guyot de Provence, and Chrestien de Troyes. The legendary history of Joseph of Arimathea is connected with the once popular belief in the introduction of Christianity into Britain as early as the first century. According to this history, Joseph, after having collected the blood of Christ, and a few days after His resurrection, was seized by the Jews, and imprisoned in a windowless dungeon, where, for a period of forty-two years, he was fed, without human sustenance, by the Holy Graal, which he found

miraculously restored to him on his first incarceration. He was at length released by Vespasian, whom, after himself submitting to baptism, he converted and baptized; and in obedience to a Divine voice, and with the Imperial permission, quitted Jerusalem with his wife and his son Josaphe, and a company of fifty people, with whom, and with the Holy Graal, which he carried inside an ark or box, he arrived at Sarras, whose king, Evalak, he endeavoured to convert. His benevolent designs upon Evalak were furthered by a couple of visions with which the whilst at the same time a vision-the motive of which has been pertinently regarded as suggested by the events of the Holy Sepulchre-was vouchsafed to Josaphe, who, upon looking intently into the Graal-ark, saw Christ first upon the cross and afterwards descending and standing beside an altar, whilst ministering angels were in attendance. Christ ordained Josaphe bishop; and the latter gave Evalak a shield inscribed with a red cross, with an injunction to the king to call upon Christ in the hour of peril or distress in the defensive war which he was about to carry on against the invading army of Tholomer, king of Babylon. A captive, and in desperate circumstances, Evalak complied with this injunction; and in his extremity was succoured and rescued by an angel in the form of a White Knight, who, having slain Tholomer, and helped Evalak to achieve a complete victory over his forces, vanished away. Evalak returned home, and was baptized, assuming at the font the name of Mordeins, whilst Seraphe, the brother of his queen, received baptism with the name of Maciens. Joseph further baptized 5000 of king Evalak's subjects, and after abiding for a consideraable time at Sarras, at length made his way to Britain, where, according to a development or variety of the legend, he arrived in company with eleven other disciples of Saint Philip, and succeeded in obtaining from king Arviragus permission to settle in a small island, where to each of the twelve was assigned, for his subsistence, a certain portion of land called a hide, the whole comprising a district known as the twelve hides of Glastonbury. The name by which the island was distinguished by the Britons was Ynyswytryn, or the Glassy Island, from the appearance of the stream which surrounded it. Afterwards it obtained the name of Avalon, alternatively with reference to the abundance of apples which it produced, or to a British chief who had been one of its sometime possessors; and finally by the Saxons it was called Glæsting-a-burig, the "borough of the Sons of Glast," or Glastonbury,

"where the winter thorn

Blossoms at Christmas, mindful of our Lord."

Here St. Joseph, who is considered by the monkish historians as the first abbot, erected, to the honour of the Virgin Mary, and formed of wreathed twigs, as if in imitation of the booths or tents under which the children of Israel sojourned during the Feast of Tabernacles, the first Christian oratory in England.

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In some forms of the legend the Holy Graal remained in the care of Joseph of Arimathea, who, after a life of preternatural extension, died, leaving his authority and his sacred treasure to his son, who, in like manner, consecrated one of his relations in his place as custodian of the Graal. In course of time, through the sins and imperfections of its keepers, the Holy Graal was caught away to heaven;" where it was preserved until there should appear on earth a race of heroes worthy to resume its guardianship. The chief of this line was an Asiatic prince named Perillus, who came to Gaul, where his descendants allied themselves with the family of a Breton prince. Titurel, the hero of the legend of Albrecht von Scharfenberg--which was finished in 1350, and which, along with the 'Percival' of Wolfram Eschenbach, A.D. 1205, was ostensibly referred to the common origin of a poem in the northern French dialect, written by Guyot of Provence, but otherwise unknown-who sprang from this glorious lineage, was the one chosen of God to found the worship of the San Graal amongst the Gauls. Angels brought the vessel to Titurel, and instructed him in its mysteries; and in its honour he erected a temple on the model of the temple at Jerusalem, and organised a band of guardians of the Vessel, a ceremonial for the worship of which he also elaborated. The Holy Graal was visible only to the baptized, and of these only to the in heart and morals. Oracles were given by the pure Holy Vessel, miraculously expressed in characters which appeared for a short time on the surface of the bowl, and then vanished. A spiritual strength and joy, a foretaste of heaven, attended the custody and the vision of the Holy Graal, which stood to its worshippers in the place of all such viands as they

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most desired or affected, which maintained them in perpetual youth, and imparted to them a graduated or comparative immunity from wounds and death. The chief of the knightly order who watched the Graal was entitled King; and, as his office was hereditary, he was permitted to marry. Titurel reigned four hundred years, being, to all appearance, of the age of forty; and was succeeded by his son Frimutelle, who, having fallen into impurity, perished in a joust in which he had engaged in honour of his mistress. To him succeeded his son Amfortas, the Pelles or Pellam of Le Mort Artus,' or 'Mort d'Arthure,' who, having in turn fallen into grievous sin, was given over by the Graal to be wounded by a lance. Then it was announced to him that he should not be healed of his wound till one came, pure and young, to Montsalvatsch, who would see the mysteries of the Holy Vessel, and inquire their signification. At this stage, however, the legends of the Graal become involved in the cycle of Arthurian romance; and it may be proper to pause here and interpose a description of the Graal, and to follow its fortunes as fabricated by more prosaic but equally baseless inventions. According to Wolfram von Eschenbach's Percival,' the Holy Graal was a vessel formed of a single precious stone, the lapis herilis, the stone of the Lord, filled with the strength of God the Father, Son, and Holy Ghost; and although it was said to have been finally transported to India, and to have remained there, several cities formerly claimed the honour of the possession of this mighty relic. At the capture of Cæsarea, in 1101, the Crusaders found what they imagined to be the very Dish itself, made of one large emerald. It was sent to Genoa, where it is still exhibited as the Sacro Catino in the treasury of the cathedral of San Lorenzo. Napoleon I. transported it to Paris, from whence it was sent back in 1815, but was cracked on the journey. It is really made of greenish glass, as, in spite of the precautions to prevent its material being tested by steel or diamond, the air-bubbles which it contains sufficiently disclose. It has two handles; is about 3 feet 9 inches in circumference; and is of hexagonal form, with some slight ornaments which appear to have been finished with the tool of a gem-engraver. The colour is beautiful, and the transparency perfect; and its exhibition to the faithful took, or takes, place three times a year in the presence of a prelate of high rank, around whom were ranged the Clavigeri to whose care it was committed. A fee of five francs will unlock the cabinet, the keys of which are kept by the municipal authorities, to the gaze and admiration of the curious stranger.

It has been sought to trace the germ or suggestion of the legend of the Holy Graal otherwise than to Joseph of Arimathea; and it has been variously supposed to have originated in the Heliotrapezon, or Sun-Table of the pious Egyptians; in the highly-prized Black-stone of the Kaaba in Mecca; in the magic mirror or cup of Salvation discovered by Dschemschid, the hero of Persian romance; in the Egyptian Hermes-goblet; and in an assumed divining-cup of the Druids. However the problem may be solved, it remains that the story of the Holy Graal is of the highest interest and importance as a preface to the entire cycle of the Arthurian romances; and their connection, otherwise so obscure, may be to some extent illustrated by regarding the account of the Last Supper of the Saviour with His disciples as at once the germ of the story of Joseph and his followers and of the romance of the Knights of the Round Table. The Holy Graal, as the symbol of Christian salvation to the Romance poets of the Middle Ages, was, like King Arthur and the sorcerer Merlin, for nearly five hundred years the kernel and central point of an extensive cycle of poems, wherein the knights of old found edification, and in writing on which poets believed they should attain final bliss. But the Graal-cycle was distinguished from the other as having no ascertainable foundation, however remote, in historical persons and events. It was rather the development of the pious thought and fancy of chivalrous ages, which sought to symbolize the mysteries and miracles of Christianity in the feigned history of a Holy Vessel; the idea of which was originally distinct from the histories of the Arthurian knights with which it was afterwards so intimately blended.

The Graal legend having been introduced as a foreign and a spiritual element into the Arthurian cycle, it seems a pertinent surmise that the introduction was the achievement of an ecclesiastical or ecclesiastically-inclined poet, who sought to redeem the pursuits of a society of gallant knights from an utter and uniform secularity. This object the poet attained by the incorporation into the Arthurian story of the account of a nobler knight, a purer man, and a more exalted reward, than any which the old

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legends furnished, and which he discovered in the Graal and Sir Galahad, the history of the former of which he probably found ready to his hand, whilst the latter was identified as a direct descendant of Joseph of Arimathea. One day, it is said, when Arthur was holding high festival with his Knights of the Round Table in the minster at Camelot, they were startled by a thunderstorm, in the midst of which a sunbeam seven times clearer than the light of mortal noontide entered the hall, and the brotherhood were enlightened by the grace of the Holy Ghost. In the intensity of this miraculous illumination the members of the knightly circle regarded each other, and each man saw his fellows invested with an incomparable beauty and grandeur. For a season there was dumbness and silence; and then the Holy Graal, covered with white samite, entered into the hall, filling it with rarest odours, and without apparent instrumentality supplying each knight with such meat and drink as he best loved in the world. None saw the Graal itself as it was carried through the hall, nor the hand that bore it; and it presently vanished as suddenly as it had arrived, so that none knew whither it had departed. Thereupon the king gave thanks to God for the grace He had vouchsafed them; and when the general power of speech returned, the knights undertook by solemn vows the Quest of the Holy Graal.

The legend of the Graal, and the story of the search for it, is told so variously by poets whose principal aim was frequently no more than the invention of new incidents, that it is hopeless to expect unity or even consistency in the several narratives. Those to which prominence is here given may be taken as illustrating the general feeling which dictated their production, rather than as pretending to a strict harmony or consentaneousness of adventures. Mr. Skeat ingeniously discovers in the historical phenomena of the time slightly anterior to the production of the first of the Graal narratives, their efficient suggestion and inspiration. "The great excitement of the middle of the 12th century was the Second Crusade, beginning in 1146. A little earlier the order of Knights Templars had been established. This was a fighting order of Knights, quite unlike to the Knights of St. John. Their object was religious glory, and their destination the East. How exactly all this is reproduced in the history of the Knights of the Round Table, seeking a holy object, and finding it likewise in the East! Godfrey de Bouillon, King of Jerusalem, meets with the success of Evalak, King of Sarras. Galahad's shield bears the Templars' device. The Saracens were then frequently heard of; hence Joseph goes to Sarras, their supposed city. The mention of the instruments of the Passion brings forward the Holy Lance, and especial attention must have been called to it by the extraordinary fraud which gave out that the Lance had been found at the siege of Antioch in 1098. Hence it was introduced naturally enough at the appearance of the Graal. The old romances had in

view a general idea of idealizing Christianity, or rather religious enthusiasm, by adding to it various mysteries and religious vows; but beyond this, the only principle which they showed was that of giving full scope to the imagination."

The fugitive and incomplete vision of the Holy Graal vouchsafed at Camelot to the chivalry of King Arthur is the first attempt at the juxtaposition of two sets of legends which were henceforth to be so closely connected. Years had passed since King Amfortas, or Pelles, first lay down wounded in his palace to await the pure knight, a "clean maid," who should heal him by the application of the sacred blood. The majority of the Knights of the Round Table were incapacitated for success in the quest of the Holy Graal through their want of charity, abstinence, and truth; and it was only to three of them-Galahad, the occupier of the Sege Perilous, Percival the Stainless, and Bors, or Bohors, the Penitent-that the honour of achieving the splendid discovery was assigned. Together the select trio repaired to the castle of King Pelles; where, after they had supped, they beheld a great light in which were four angels bearing up an ancient man in bishop's vestments, whom they set down before a table of silver, on which appeared the San Graal. The aged prelate was no other than Joseph of Arimathea," the first Bishop of Christendom." Then other angels appeared bearing candles, and a spear from which fell drops of blood; and these drops were collected, by an angel, in a box. The angels now placed the candles on the table, and "the fourth set the Holy Spear upright upon the Vessel; after which Joseph proceeded to celebrate the sacred mysteries. At the consecration appeared our Lord Himself, who summoned Sir Galahad, and incited him to ask what the Vessel was which He held between His hands. Christ then declared it was the Holy Dish wherein He ate the

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lamb at the Last Supper, a more open and abundant sight of which Galahad should enjoy in the city of Sarras, whither he was to convey it. Galahad, therefore, having anointed the wounded king with the blood which dropped from the spear, and so made him whole, set out, with his friends Bors and Percival, to the mystic city of Sarras, where he was made king. The story is varied in the Percival' commenced by Chrestien de Troyes, and carried on and concluded by his continuators towards the close of the 12th century, which attributes to Percival the cure of the king, from whom he received in return the Sacred Vessel and the bleeding Lance, and retired to a hermitage. On the death of Percival, the Holy Graal and the Lance were taken up into heaven. It is probable that this version was an adaptation of a Welsh tale entitled 'Pheredur,' the hero of which is not a Christian, and the holy vessel of which is a mysterious relic of a past heathen rite. It is Sir Percival whom Schulz regards as the "point of union" between the story of the Graal and the adventures of chivalry for its recovery. "The fable of the Graal," he says, "did not exist in the chronicles of those countries which preserved the traditions of ArthurBritain, France, and Ireland. .. The second group of romances, whose centre is the Graal, constitutes the Provençal and Spanish element; the first is Welsh-and the point of union is the chief hero Percival, the Peredur of the Welsh.

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gift attaches to it more or less closely throughout its various
usages. Its theological significance has been already discussed
[E. C., vol. iv. col. 454]; and of its other meanings may be
mentioned that of a short prayer or office of praise both before
and after meals. The practice of rendering thanks on such oc-
casions was transplanted, under the sanction of our Lord's own
example, into Christian habit and observance, from the tradi-
tions of Jewish, and indeed of nearly universal, custom. So
early as the fourth century it is known that such thanksgivings
occasionally took a metrical form; and it was with the twofold
significance of grateful rejoicing and of affection that the grace-
cup, loving-cup, poculum caritatis, was sent round at the con-
vivial meetings of our ancestors, and still continues to circulate
after civic feasts, and the more formal of the banquets in the
halls of the Inns of Court and the Universities.
The word Grace has other phases, political, social, legal, com-
mercial, and academical. Thus, an Act of Grace is equivalent to
an act of amnesty, or oblivion, or to an act for the relief of in-
solvent debtors; Days of Grace are a number of days allowed
by custom for the payment of bills of exchange after they have
become due; Grace is in certain cases used for a faculty, licence,
dispensation, privilege, or concession; and also for a resolution
of the legislative body of a university, or of an academical
corporation, as a college or hall, less than, or a part of, a uni-
versity.

(1) Until the middle of the 12th century, not the slightest trace GRACILIS, the name given to one of the muscles of the of the Graal, or anything resembling it, can be found in the thigh, on account of its great length compared with its small Breton or Welsh poems; (2) Towards the same period we dis-size.. It is the same as the Rectus internus femoris. cover, in the French poems only, the first indications of any knowledge of the traditions of Arthur; and (3) this branch of poetry received a particular impulse from the sovereignty of England over a great part of France; and we must be deceived upon every point, if Arthur and the San Graal did not first meet half-way in France about 1150, coming from the North and from the South." The latest results of our own insular criticism, however, selects out of the five authors who are specially noted as the writers of Graal Romances, Walter Map, or Mapes, the scholarly and genial poet, who was Archdeacon of Oxford in the latter half of the 12th century, as being the pioneer in this species of the literature of chivalry. Mr. Skeat supposes that Walter Map wrote his romance, 'Joseph,' about 1170, or a few years earlier.

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Some of the writers of Graal Romances profess to have translated from a Latin original, which, in the case of the History of the Holy Graal,' was said to be "from the original Latin, written by Jesus Christ with His own hand, being the only writing made by God since His uprising." The legend here involved is more particularly stated to the effect that in A.D. 717, in England, Christ, as a beautiful man, appeared to a Trinity-doubting monk, and promised to clear his doubts by means of a book which he presented to him. In this book were four treatises, of which one was the 'Book of the Holy Graal;' which has thus been laid open to the denunciation of Mr. Price, a late editor of Warton's History of English Poetry,' as being no romance, but a blasphemous imposture, more extravagant and daring than any other on record, in which it is endeavoured to pass off the mysteries of bardism for direct inspirations of the Holy Ghost." (Furnival's edition, with a Prefatory Essay by Albert Schulz, On the Saga of the Holy Graal, of Seynt Graal, or the Sank Ryal; The History of the Holy Graal, printed for the Roxburghe Club; Furnival's edition, for the Roxburghe Club, of La Queste del Saint Graal; Skeat's edition, with Preface, of Joseph of Arimathie, printed for the Early English Text Society; Albert Schulz's Essay on the Influence of Welsh Tradition upon the Literature of Germany, France, and Scandinavia; Professor Henry Morley's English Writers; Baring-Gould's Curious Myths of the Middle Ages; Tennyson's Holy Grail; and others.)

GRACE, a title of dignity first conferred on the kings of England about the time of Henry IV., by whose successors it was used-with certain modifications, as "Excellent Grace," first given to Henry VI.-until it was merged, along with the more recent title of Highness, in that of Majesty, which was assumed by Henry VIII., from the time of his being so addressed by Francis I. of France, at the Field of the Cloth of Gold, A.D. 1520. After the royal adoption of the last-named title, the style of Grace-His Grace, Her Grace, Your Grace-devolved upon dukes, duchesses, and archbishops. The title appears to have been originally conceived in the spirit of recognising the sovereign as the fountain of goodness and honour, as the supreme representative and dispenser of favour and clemency.

The radical idea of the word Grace as a free and unconditioned

GRADUAL (Latin, GRADUALE or GRADALE), sometimes shortened into GRAIL, is the psalm, anthem, or hymn, which from a remote antiquity has been sung or said in the service of the Romish Church, between the Epistle and the Gospel; and which received its name from the circumstance of its being anciently chanted on the steps (gradus) of the ambo, or pulpit. The custom, however, has not always been of a strictly universal acceptance, for in the Churches of Gaul and Spain the Gradual was not used, and the Church of England, at the revision of her liturgy, omitted it likewise. Anciently the Gradual was looked upon as a lesson from Scripture, even when it was sung; and in the time of St. Augustine, it is ascertained that in the African Church the Psalm was sung between the Epistle and the Gospel. But there is reason to believe that this was not its original position; for, as a lesson from Scripture, its prescriptive order would have been after the Law and the Prophets, as it is even now observed by the Church of Milan, in the services of which the Psalm is placed between the lesson of the Old Testament and the Epistle. It is probable, therefore, that when the Western Churches generally began to discontinue the lessons from the Old Testament, they placed the Psalm between the Epistle and the Gospel, in order to preserve the semblance of the ancient custom, according to which the Psalm had always intervened between the Old and the New Testament.

By a natural and easy transition, the name Gradual was frequently given to the Antiphonary, the book which contained the anthems, hymns, or verses, to be sung or recited, and originally one of the three service books of the Church-the other two being entitled respectively the Sacramentary and the Lectionary which, about the 11th or 12th century, it was found convenient to unite in a single volume, called the Complete or Plenary Missal, or Book of Missa.

The title of Psalmi Graduales, or Psalms of Degrees, is given to a series of fifteen Psalms, extending from cxx. to cxxxiv. inclusive, some of which are believed to have been written on the return of the Jews from the captivity in Babylon, and which, being distributed into groups of five, have three ascensions, and are sometimes used, with a certain liturgical significance, in the services of the season of Lent. (Palmer's Origines Liturgica, or Antiquities of the English Ritual; Hook's Church Dictionary, and others.)

GRÁFFIER, GREFFIER (Med. Latin, graphiarius or greffarius, French greffier), a registrar, a notary. In France the greffiers are an important body of public servants, appointed and paid by the state, and presided over by a greffier en chef. Greffiers are attached to all the courts. They have the charge of the records, keep the register of causes, enter notes of the several proceedings, issue judgments, &c. Greffiers-adjoints are attached to the tribunaux de première instance, tribunals of commerce, and courts of appeal. In the superior courts the greffiers must be twenty-seven years of age, in the lower courts twenty, five. A large part of the emoluments of the greffiers is derived from fees.

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