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THE

AMERICAN

JOURNAL OF SCIENCE.

EDITOR: EDWARD S. DANA.

ASSOCIATE EDITORS

PROFESSORS GEO. L. GOODALE, JOHN TROWBRIDGE,

W. G. FARLOW AND WM. M. DAVIS, OF CAMBRIDGE,

PROFESSORS A. E. VERRILL, HENRY S. WILLIAMS AND

L. V. PIRSSON, OF NEW HAVEN.

PROFESSOR GEORGE F. BARKER, OF PHILADELPHIA,
PROFESSOR JOSEPH S. AMES, OF BALTIMORE,

MR. J. S. DILLER, OF WASHINGTON.

FOURTH SERIES.

VOL. XIII-[WHOLE NUMBER, CLXIII.]

WITH EIGHT PLATES.

NEW HAVEN, CONNECTICUT.

1902.

[blocks in formation]

CONTENTS TO VOLUME XIII.

SCIENTIFIC INTELLIGENCE.

Chemistry and Physics-Chemical Reactions produced by Radium, BERTHELOT,

59.--Preparation of Nitrogen from Ammonium Nitrate, J. MAI: Atomic Weight

of Tellurium, PELLINI: Artificial Spinel, DUFAU, 60.-Size of the Sulphur

Molecule, Biltz and PREUNER: Direct Gravimetric Method for the Estimation

of Boric Acid, PARTHEIL and Rose: Pressure of Light, E. L. NICHOLS, G. F.

HULL and P. LEBEDEW, 61.-Chemical Effects produced by Radium Radiations,

H. BECQCEREL: Induction Coil, Lord RAYLEIGH: Resistance in High Vacua, W.

ROLLINS, 62.–Studies from the Chemical Laboratory of the Sheffield Scientific

School, H. L. WELLS, 63.—Light; A Consideration of the more familiar

Phenomena of Optics, C. S. HASTINGS, 64,

Geology and Mineralogy--Lamarck, the founder of Evolution, his life and work,

with translations of his writings on Organic Evolution, A. S. PACKARD, 65.-

Congrès Géologique international; Comptes Rendus de la VIIIe session, en

France, A. GAUDRY and C. BARROIS, 67.-Preliminary Description of the

Geology and Water Resources of the Southern Half of the Black Hills and

adjoining Regions in South Dakota and Wyoming, N. H. DARTON, 68.– Newark

System of Pomperaug Valley, Connecticut, W. H. Hobbs and F. H. KNOWLTON:

Influence of Winds upon Climate during the Pleistocene Epoch, F. W. HARMER,

70.-— Relative Density of Fluid and Solid Magmas, 71.-Siebengebirge am

Rheia, H. LASPEYRES: New Mineral Names, 72.- Mineralogy of California,

A. S. Eakle and W.C. BLASDALE: New localities of Nephrite, A. DIESELDORFF,

73.- World's Largest Diamond, 74.

Zoology and Botany-Reports on the Natural History of Porto Rico, 75.-

Alcyonaria of Porto Rico, C. W. HARGITT and C. G. ROGERS: Mollusca of

Porto Rico, W. H. DALL and C. T. SIMPSON: Birds of North and Middle

America, R. RIDGEWAY: Capillaranalyse beruhend auf Capillaritäts- und

Adsorptionserscheinungen, mit dem Schlusskapitel: das Emporsteigen der

Farbstoffe in den Pllanzen, F. GOPPELSROEDER, 78.- Plant Life of Alabama,

C. MOHR, 79.

Astronomy-Leonids in 1901: Leonids at Phoenix, Arizona, D, S. LANDIS, 79,-

Leonids at Havre, Montana, C. W. LING, 80.

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