THE

AMERICAN JOURNAL

OF

SCIENCE AND ARTS.

EDITORS,

JAMES D. DANA, B. SILLIMAN, AND E. S. DANA.

ASSOCIATE EDITORS,

PROFESSORS ASA GRAY, WOLCOTT GIBBS AND
J. P. COOKE, JR., OF CAMBRIDGE,

PROFESSORS H. A. NEWTON, S. W. JOHNSON, G. J BRUSH
AND A. E. VERRILL, OF NEW HAVEN,

PROFESSOR GEORGE F. BARKER, OF PHILADELPHIA.

THIRD SERIES.

VOL. XV. [WHOLE NUMBER, CXV.]

Nos. 85-90.

JANUARY TO JUNE, 1878.

WITH TWO PLATES.

NEW HAVEN: EDITORS.

)

PRINTED BY TUTTLE, MOREHOUSE & TAYLOR, 371 STATE ST.

CONTENTS OF VOLUME XV.

NUMBER LXXXV.

Page

1

ART. I.-Contributions to Meteorology, being results derived

from an examination of the Observations of the United

States Signal Service, and from other sources; by ELIAS

LOOMIS, Eighth paper. With plates 1 and 2,..

II.-Recent American Earthquakes; by C. G. ROCKWOOD, Jr., 21

III.-Under-water Oceanic Temperature; by G. E. BELKNAP, 27

IV.-Magnetic Effect of Electric Convection; by H. A. Row-

LAND,

V.-Jupiter and its Satellites; by MARIA MITCHELL,

VI.-Revision of the Atomic Weight of Antimony; by

JOSIAH P. COOKE, Jr.,.

30

38

41

VII. - Pyrophosphorite: an Anhydrous Pyrophosphate of

Lime from the West Indies; by C. U. SHEPARD, Jr., 49

SCIENTIFIC INTELLIGENCE.

Chemistry and Physics.-On the Direct Combustion of Nitrogen, KÄMMERER: On

the Relative Attraction of Oxygen for Hydrogen and Carbonous oxide, HORST-

MANN, 51.-On the Sulphides of Platinum, RIBAN, 52.-On the Destructive Dis-

tillation of Phenol and Chlorbenzene, KRAMERS: Boracic Acid, M. L. DIEULAFAIT,

53.-Photo-electric Phenomena, R. BORNSTEIN, 54, HANKEL, 55.-Specific Heat

of air at constant pressure and constant volume, H. KAYSER: Fluorescence of

the Retina, 55.

Geology and Mineralogy.-Reports of the United States Geographical Surveys west

of the One-hundredth meridian, 55.-Summary of field work of the United States

Geological and Geographical Survey of the Territories, F. V. HAYDEN, 56.--

Geology of Wisconsin, 61.-Probable ancient outlet of the Great Salt Lake:

Siberian Steppes: Mikroskopische Physiographie der massigen Gesteine, H.

ROSENBUSCH, 65.-A Guide to the Determination of Rocks, by E. JANNETAZ:

Tables for the Determination of Minerals, by P. FRAZER, Jr.: Tridymite in Ire-

land: Anthracite of Pennsylvania, 66.

Botany and Zoology.-The Different Forms of Flowers on Plants of the same Spe-

cies, C. DARWIN, 67.-Ferns of North America, D. C. EATON: Notes on

Botrychium simplex, G. E. Davenport, 72.-Researches in regard to the in-

fluence of light and radiant heat upon transpiration in plants, J. WIESNER:

Ueber Botrydium granulatum: J. ROSTAFINSKI and M. WORONIN, 73.-Om

Spetsbergens marina Klorofyll förande Thallophyter, 74.-Felci e Specie nei

Gruppi affini raccolte a Borneo: Notes on Botrychium simplex Hitch., G. E.

DAVENPORT: Note on the Habits of young Limulus, A. AGASSIZ, 75.-New Spe-

cies of Ceratodus, from the Jurassic; O. C. MARSH, 76.

Astronomy.-The November Meteors: On Schmidt's Nova Cygni, 76.--The Report

of Professor Pickering, 77.

Miscellaneous Scientific Intelligence.-Norwegian Exploring Expedition: Translation

of Weisbach's Mechanics, 78.-A New Treatise on Steam Engineering, etc.: A

List of Writings relating to the Method of Least Squares, by M. MERRIMAN:

Elements of the Method of Least Squares, by M. MERRIMAN: Royal Society, 79.

Obituary.-Jared Potter Kirtland, 86.