The Philosophical Magazine: Comprehending the Various Branches of Science, the Liberal and Fine Arts, Geology, Agriculture, Manufactures and Commerce, Volume 30Richard Taylor and Company, 1808 - Physics |
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Page 15
... experiments and cal- culations in harmonics , and requesting him to employ the best professional Tuners to tune his instruments , without any intimation to the Tuners , of his intentions or object ; and before such instruments are put ...
... experiments and cal- culations in harmonics , and requesting him to employ the best professional Tuners to tune his instruments , without any intimation to the Tuners , of his intentions or object ; and before such instruments are put ...
Page 30
... with which I am acquainted . Table Cranium Cranium of of the great Cranium ditto Separate ditto 22 Memoir upon living and fossil Elephants.` Experiments upon the liquid Sulphur of Lampadius By Messrs VAUQUELIN and ROBIQUET.
... with which I am acquainted . Table Cranium Cranium of of the great Cranium ditto Separate ditto 22 Memoir upon living and fossil Elephants.` Experiments upon the liquid Sulphur of Lampadius By Messrs VAUQUELIN and ROBIQUET.
Page 33
... experiments were attended with no accident what- ever , and produced a very sensible diminution of the fetid smell with which the air of the prison was impregnated ; and we had the satisfaction very soon of seeing the epidemy of putrid ...
... experiments were attended with no accident what- ever , and produced a very sensible diminution of the fetid smell with which the air of the prison was impregnated ; and we had the satisfaction very soon of seeing the epidemy of putrid ...
Page 33
... experiment . Their diseased flocks were al- lowed to pasture along with the healthy , the latter having been previously fumigated in the folds , and no contagion was communicated . The ... Experiments upon the liquid Sulphur of Lampadius .
... experiment . Their diseased flocks were al- lowed to pasture along with the healthy , the latter having been previously fumigated in the folds , and no contagion was communicated . The ... Experiments upon the liquid Sulphur of Lampadius .
Page 33
... Experiments upon the liquid Sulphur of Lampadius . By Messrs . VAUQUELIN and ROBIQUET * . Process . LAMPADIUS , who was the first to observe this particular fluid , which he called liquid sulphur , obtained it by the distillation of ...
... Experiments upon the liquid Sulphur of Lampadius . By Messrs . VAUQUELIN and ROBIQUET * . Process . LAMPADIUS , who was the first to observe this particular fluid , which he called liquid sulphur , obtained it by the distillation of ...
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acetic acetic acid alcohol ammonia angle appear ascertain barometer barytes boil calcareous called carbonate carbonic acid centre cloth Cloudy cobalt colour contains convex lens cosine cubical inches cubits degrees dissolved distilled diurnal motion dudus weight epidote equal equation ether experiments feet flask fluid formation formed geometrical movement give globules gray oxide green hard bodies heat iron lens light lime Linnæus machine mass means ment mercury metal metalline mirror method motion muriatic acid nature nitric nitric acid observations obtained oxide oxygen parallax phænomena potash precipitate primary set pyrites quantity of movement rays reflection rock secondary set seers serpentine sets of rings shock silex silk slip of glass solution specific gravity specimens steatite stone substance sulphate sulphur sulphuretted suppose surface temperature Tilloch tion tube variolite velocity whole wire
Popular passages
Page 243 - The lead-coloured mass has been described already, and constitutes by far the greater part of the stone. After being wet and exposed to the air, the stone becomes covered with numerous reddish spots, which do not appear in a fresh fracture, and arise manifestly from the rusting of the iron. 5. There are a few instances of matter dispersed irregularly through the stone, which are considered as intermediate between pyrites and malleable iron.
Page 240 - Coming to the place, he found a great mass of fragments of a strange-looking stone, and immediately called for his wife, who was second on the ground. Here were exhibited the most striking proofs of violent collision. A ridge of micaceous schistus, lying nearly even with the ground, and somewhat inclining, like the hill, to the south-east, was shivered to pieces...
Page 240 - Seeley went into his field to look after his cattle. — He found that some of them had leaped into the adjoining enclosure, and all exhibited strong indications of terror. Passing on, he was struck with surprise at seeing a spot of ground which he knew to have been recently turfed over, all torn up, and the earth looking fresh, as if fvom recent violence.
Page 241 - From the best information which we could obtain of the quantity of fragments of this last stone, compared with its specific gravity, we concluded that its weight could not have fallen much short of 200 pounds. All the stones, when first found, were friable, being easily broken between the fingers ; this was especially the case, where they had been buried in the moist earth ; but by exposure to the air, they gradually hardened.
Page 294 - Astronomy," which appeared in 1814, and is dedicated to Maskelyne, and also in the fourth edition of the "Elements of Astronomy," Cambridge, 1816. The article is entitled " A new method of computing the effect of parallax, in accelerating or retarding the time of the beginning or end of a transit of Venus or Mercury over the sun's disc, by Nevil Maskelyne, DD, FRS, and AstronomerRoyal.
Page 237 - Burr found to be still warm to his hand. There was reason to conclude, from all the circumstances, that this stone must have weighed about twenty or twenty-five pounds. Mr. Burr had a strong impression that another stone fell in an adjoining field, and it was confidently believed that a large mass had fallen into a neighbouring swamp, but neither of these had been found.
Page 327 - ... kept in the water from six to eight days. They are known to be ready, when the bark separates easily from the pith. It is then taken out of the water, and a man, taking it up by handfuls, beats them on the ground, occasionally washes them until they be clean ; and at the same time picks out with his hand the remainder of the pith, until nothing except the bark be left. This is then dried, and, being taken up by handfuls, is beaten with a stick to separate and clean the fibres. The hemp is then...
Page 237 - Burr was within 50 feet, and immediately searched for the body, but, it being still dark, he did not find it till half an hour after. By the fall, some of it was reduced to powder, and the rest of it was broken into very small fragments, which were thrown around to the distance of 20 or 30 feet. The rock was stained at the place of contact with a deep lead colour.
Page 223 - English glue, dissolved in •water, and beat them together with a hammer, till they be thoroughly united ; which requires the labour of two persons for a whole day. The mass is then cut into small cakes, and dried in the shade. These cakes can at any time be dissolved in water, and spread thin with a hair brush on common writing paper. The paper must...
Page 234 - ... adjoining his house, and had an opportunity of witnessing the whole phenomenon. From him the account of the appearance, progress, and explosion of the meteor is principally derived. The morning was somewhat cloudy. The clouds were dispersed in unequal masses; being in some places thick and opaque, and in others fleecy, and partially transparent. Numerous spots of unclouded sky were visible, and along the Northern part of the horizon, a space of 10 or 15 degrees was perfectly clear.