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PERMANENT SUBSECTION OF CHEMISTRY.

Address of JOHN M. ORDWar, Chairman .

Laws governing the Decomposition of Equivalent Solutions of Iodides under

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

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

Determining the Amount of Reducing Substances present by the Polari-

scope. By II. 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 Colors for Salt-glazed Pottery. By A. A. BRENEMAN

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

and Means for supplying them. By WM. MCMURTRIE

The Action of Sunlight on Glass. By THOMAS GAFFIELD

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

By E. T. Cox.

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

Abstract. By EDWARD W. Morler

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

By EDWARD W. MORLEY

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

Abstract. By EDWARD W. MORLEY

Some points in the construction of an apparatus for the accurate analysis of

gases. Abstract. Ky 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.

By W.0. ATWATER

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COMMUNICATIONS.

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

Tnrquoise 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. Mustrated

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-spipal Nervous System. Abstract. By S. Y. CLEVENGER.

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

Branchiopod Crustaceans. By CARL F. GISSLER

On Color-blindness. Abstract. By B. JOY JEFFRIES

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

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

GOODE

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

SMILEY

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WARREN

Titles of Papers read in the Subsection but not printed

733

734

EXECUTIVE PROCEEDINGS.

Report of the General Secretary

General Report of the Permanent Secretary

Cas Account of the Permanent Secretary

Scientific Institutions of Boston and vicinity

INDEX.

737

756

764

767

OFFICERS OF THE

BOSTON MEETING.

PRESIDENT.
LEWIS H. MORGAN, of Rochester, N. Y.

VICE PRESIDENT, Section A.
Asaph Hall, of Washington, D. C.

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. Nasox, 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.

Oficers 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.

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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