Proceedings of the American Association for the Advancement of Science

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241

243

247

253

264

Friction of Lubricating Oils. By C. J. H. WOODBURY. Mustrated

Determination of the Comparative Dimensions of Ultimate Molecules; and

Deduction of the Specific Properties of Substances. By WILLIAM A.

NORTON. Illustrated

On the Force of Effective Molecular Action; and the Mechanical Properties
and Laws dependent on it. Abstract. By WILLIAM A. NORTON

On a Simple Device for Projecting Vibrations of a Liquid Film without a Lens.

By H. S. CARHART

Note on the Zodiacal Light. Abstract. By HENRY CARVILL LEWIS

The Aurora and Zodiacal light of May 2, 1877. By HENRY CARVILL LEWIS

Experiments on the Strength of Yellow Pine. Abstract. By R. H. THURSTON

The Velocity of Shot. By ALFRED M. MAYER. Illustrated

A New Method of obtaining a Permanent Trace of the Plane of Oscillation of

a Foucault-pendulum. Abstract. By ALFRED M. MAYER

On a simple means of measuring the Angle of Inclination of the mirrors

used in Fresnel's experiment on the Interference of Light. Abstract.

By ALFRED M. MAYER

New Planetary Nebula. Abstract. By EDWARD C. PICKERING

New Method for Finding the Numerical Roots of Equations below the Fourth

Degree. Abstract. By JAMES D. WARNER

Railway Time Service. By P. H. DUDLEY

Titles of Papers read in the Section but not printed

PERMANENT SUBSECTION OF CHEMISTRY.

Address of JOHN M. ORDWAY, Chairman

Laws governing the Decomposition of Equivalent Solutions of Iodides under

the influence of Actinism. By ALBERT R. LEEDS. Illustrated

The Rotatory Power of Commercial Glucose and Grape Sugar. A Method of

Determining the Amount of Reducing Substances present by the Polari-

scope. By H. W. WILEY

The Effect of Heating with Dilute Acids, and Treating with Animal Charcoal

on the Rotatory Power of Glucose; with Notes on the Estimation of Cane

Sugar and Glucose in Mixtures. By H. W. WILEY

Salt solutions and the Absorption of Gases. By E. L. NICHOLS

Notes on Water Analysis. By A. A. BRENEMAN

On the Deficiencies of Meteorological Work in data of value to Agriculture,

and Means for supplying them. By Wм. MCMURTRIE

330

The Action of Sunlight on Glass. By THOMAS GAFField

333

The discovery of Oxide of Antimony, in extensive lodes, in Sonora, Mexico.

By E. T. Cox

343

Remarks on tables for the reduction to zero of the measured volumes of gases.

Abstract. By EDWARD W. MORLEY

345

The most convenient scale for a thermometer used in gas analysis. Abstract.

By EDWARD W. MORLEY

346

Remarks on Jolly's apparatus for determining the amount of oxygen in air.

Abstract. By EDWARD W. MORLEY

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Some points in the construction of an apparatus for the accurate analysis of
gases. Abstract. By EDWARD W. MORLEY

Numerical results for the mean ratio of oxygen to the sum of oxygen and

nitrogen in atmospheric air. Abstract. By EDWARD W. MORLEY.

Some conclusions as to the cause of the frequent fluctuations in the ratio of

oxygen to nitrogen in the air at different times. Abstract. By EDWARD

W. MORLEY

The soil supply of nitrogen for plants. Abstract. By W. O. ATWATER

The determination of phosphoric acid by the molybdic method. Abstract.

The determination of sulphuric acid. Abstract. By W. O. ATWATER.
The determination of nitrogen by the hypobromite process. Abstract. By
W. O. ATWATER

The quantitative determination of fats. Abstract. By W. O. ATWATER
Titles of Papers read in the Subsection, but not printed

PERMANENT SUBSECTION OF MICROSCOPY.

PAGE

356

357

Microscopical Collections in Florida. By C. C. MERRIMAN

Sulphuric-acid treatment of Seeds and its value to Cotton Planting and Cul-

ture. By THOMAS TAYLOR

Permanent Microscopic Preparations of Plasmodium. By SIMON H. GAGE

Permanent Microscopic Preparations of Amphibian Blood Corpuscles. By

SIMON H. GAGE

Method of Preparing and Mounting Wings of Microlepidoptera. By C. H.

FERNALD

The Microscopical Investigations of the Havana Yellow Fever Commission.

By GEO. M. STERNBERG

Titles of Papers read in the Subsection but not printed

SECTION B. NATURAL HISTORY.

On the Progress of Geological Investigation in New Brunswick, 1870-1880.

By L. W. BAILEY

The Cupriferous Series in Minnesota. By N. H. WINCHELL

An attempt to estimate approximately the Date of the close of the Glacial
Epoch, from an inspection of the Kames and Kettle-holes of New Eng-
land. Abstract. By G. FREDERICK WRIGHT

The Iron Ores of the Brandon Period. Abstract. By HENRY CARVILL

LEWIS

On the age of the Copper-bearing Rocks of Lake Superior. Abstract. By M.

E. WADSWORTH

Turquoise of New Mexico. By B. SILLIMAN. Illustrated

The Island of Montreal an Island, not in the St. Lawrence, but in the Ottawa.

By WILLIAM BOYD. Illustrated

The Law of Land-forming on our Globe. By RICHARD OWEN

On Maximum Synchronous Glaciation. By W. J. MCGEE. Illustrated

The Kames or Eskers of Maine. By GEORGE H. STONE. Illustrated

Preservation of fossil Insects and Plants on Mazon Creek. By J. W. PIKE

The Fossil Dinocerata in the E. M. Museum at Princeton, New Jersey.

Abstract. By FRANKLIN C. HILL. Illustrated

Transformations of Planorbis at Steinheim, with remarks on the effects of

gravity upon the forms of shells and animals. Abstract. By ALPHEUS

HYATT. Illustrated

On the Study of Comparative Anatomy as a part of the Medical Curriculum.

By HARRISON ALLEN

Plan of the Cerebro-spinal Nervous System. Abstract. By S. V. CLEVENGER.

Evidences of the Effect of Chemico-physical Influences in the Evolution of

Branchiopod Crustaceans. By CARL F. GISSLER

The First Decade of the United States Fish Commission: its plan of work

and accomplished results, scientific and economical. By G. BROWN

GOODE

563

The Spanish Mackerel, and its Artificial Propagation. By CHARLES W.

SMILEY

575

Anthrax of Fruit Trees: or the so-called Fire Blight of Pear, and Twig Blight

of Apple Trees. By T. J. BURRILL

Field Work by Amateurs. By ELLEN HARDIN WALWORTH

Titles of Papers read in the Section but not printed

PERMANENT SUBSECTION OF ENTOMOLOGY.

Address of SAMUEL H. SCUDDER, President of the Entomological Club of

the Association

609

Further notes on the Pollination of Yucca and on Pronuba and Prodoxus.

By C. V. RILEY. Illustrated

617

Additional notes on the Army Worm (Leucania unipuncta). Abstract. By

C. V. RILEY

640

Some recent Practical Results of the Cotton Worm Inquiry by the U. S.

Entomological Commission. By C. V. RILEY

642

The hitherto unknown Life-habits of two genera of Bee-flies (Bombyliidæ).

Abstract. By C. V. RILEY

649

On Lightning Bugs. By JOHN L. LECONTE

650

The Endocranium and Maxillary Suspensorium of the Bee.

MACLOSKIE. Illustrated

By G.

660

Sub-elytral Air-passages in Coleoptera. By CARL F. GISSLER. Illustrated

Two new uses of Important Insecticides. By A. J. COOK

Titles of Papers read in the Subsection but not printed

The Dacotah Tribes: their beliefs, and our duty to them outlined. By

HENRY B. CARRINGTON

The Theory of Primitive Democracy in the Alps. By DENMAN W. Ross

The Antiquity of Man in Eastern America, geologically considered. Abstract.

By HENRY CARVILL LEWIS

Ancient Mounds of Illinois. By WILLIAM MCADAMS

693

706

710

Ancient Agricultural Implements of Stone. By WILLIAM MCADAMS

A Stone Implement from a Well in Illinois. By WILLIAM MCADAMS

Prehistoric Altars of Whitesides County, Illinois. By W. C. HOLBROOK

Antiquities in the Town of New Haven, Vermont. By J. M. CURRIER

On the Alabaster Quarries, Flint Mines, and other Antiquities of Wyandot

Cave. By HORACE C. HOVEY

Some Observations on Geometric Beanty, considered as consisting of

Angular rather than in Linear Ratio. Abstract. By S. EDWARD

WARREN

Notes on an American Example of a "St Giles Staircase." By S. EDWARD

WARREN

Titles of Papers read in the Subsection but not printed.

EXECUTIVE PROCEEDINGS.

Report of the General Secretary

General Report of the Permanent Secretary

Cash Account of the Permanent Secretary

Scientific Institutions of Boston and vicinity

VICE PRESIDENT, Section B.
ALEXANDER AGASSIZ, of Cambridge, Mass.

CHAIRMAN OF PERMANENT SUBSECTION OF CHEMISTRY.
JOHN M. ORDWAY, of Boston, Mass.

CHAIRMAN OF PERMANENT SUBSECTION OF MICROSCOPY. S. A. LATTIMORE, of Rochester, N. Y.

CHAIRMAN OF PERMANENT SUBSECTION OF ANTHROPOLOGY.
J. W. POWELL, of Washington, D. C.

CHAIRMAN OF SUBSECTION OF ENTOMOLOGY.
JOHN G. MORRIS, of Baltimore, Md.

PERMANENT SECRETARY.
F. W. PUTNAM, of Cambridge, Mass.

GENERAL SECRETARY.
JOHN K. REES, of St. Louis, Mo.

SECRETARY OF SECTION A.
HENRY B. NASON, of Troy, N. Y.

SECRETARY OF SECTION B.
C. V. RILEY, of St. Louis, Mo.

SECRETARY OF PERMANENT SUBSECTION OF CHEMISTRY. CHARLES E. MUNROE, of Annapolis, Md.

SECRETARY OF PERMANENT SUBSECTION OF MICROSCOPY. A. B. HERVEY, of Taunton, Mass.

SECRETARY OF PERMANENT SUBSECTION OF ANTHROPOLOGY.
J. G. HENDERSON, of Winchester, Ill.

SECRETARY OF SUBSECTION OF ENTOMOLOGY.
B. PICKMAN MANN, of Cambridge, Mass.

TREASURER.

WILLIAM S. VAUX, of Philadelphia, Pa.

STANDING COMMITTEE.

Past Presidents.-BENJAMIN PEIRCE, of Cambridge; JAMES D. DANA, of

New Haven; JAMES HALL, of Albany; STEPHEN ALEXANDER, of Prince-

ton; ISAAC LEA, of Philadelphia; F. A. P. BARNARD, of New York; J. S.

NEWBERRY, of New York; B. A. GOULD, of Boston; T. STERRY HUNT, of

Montreal; ASA GRAY, of Cambridge; J. LAWRENCE SMITH, of Louisville;

JOSEPH LOVERING, of Cambridge; JOHN L. LECONTE, of Philadelphia;

J. E. HILGARD, of Washington; WILLIAM B. ROGERS, of Boston; SIMON

NEWCOMB, of Washington; O. C. MARSH, of New Haven.

The President, Vice Presidents, Permanent and General Secretaries, the

Secretaries of Sections A and B, and Treasurer of the Meeting.

Officers of the Preceding Meeting.-GEORGE F. BARKER, of Philadelphia;
S. P. LANGLEY, of Allegheny; J. W. PoWELL, of Washington; H. CAR-
RINGTON BOLTON, of Hartford; W. H. DALL, of Washington.

From the Association at large. - N. T. LUPTON, of Nashville; F. W.

CLARKE, of Cincinnati; E. T. Cox, of Oakland; WILLIAM HARKNESS, of

Washington; O. T. MASON, of Washington; S. A. LATTIMORE, of Roch-

ester.

SECTIONAL COMMITTEE OF SECTION A.

ASAPH HALL, of Washington; H. B. NASON, of Troy; JOHN M. ORD-
WAY, of Boston; CHARLES E. MUNROE, of Annapolis; S. A. LATTIMORE,
of Rochester; A. B. HERVEY, of Taunton; A. W. WRIGHT, of New Haven;
ALFRED M. MAYER, of Hoboken; JOHN TROWBRIDGE, of Cambridge.

SECTIONAL COMMITTEE OF SECTION B.

ALEXANDER AGASSIZ, of Cambridge; C. V. RILEY, of Washington; J.
W. POWELL, of Washington; J. G. HENDERSON, of Winchester; E. D.
COPE, of Philadelphia; G. L. GOODALE, of Cambridge; BURT G. WILDER,
of Ithaca; J. G. MORRIS, of Baltimore; B. PICKMAN MANN, of Cambridge.

NOMINATING COMMITTEE OF SECTION A.

HENRY B. NASON, of Troy; F. H. SMITH, of Charlottesville; J. M. VAN
VLECK, of Middletown; THOMAS HILL, of Portland.

NOMINATING COMMITTEE OF SECTION B.

C. S. MINOT, of Boston; A. J. Cook, of Lansing; THOMAS MEEHAN, of
Philadelphia; F. G. Farlow, of Cambridge.

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Proceedings of the American Association for the Advancement of Science, Issue 29