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PROFESSORS GEO. L. GOODALE, JOHN TROWBRIDGE,

H, P. BOWDITCH AND W. G. FARLOW, OF CAMBRIDGE.

PROFESSORS H. A. NEWTON, 0. C. MARSII, A. E. VERRILL

AND H. S. WILLIAMS, OF NEW HAVEN,

PROFESSOR GEORGE F. BARKER, OF PHILADELPHIA.

THIRD SERIES.

VOL. XLIX-[WHOLE NUMBER, CXLIX.]

Nos. 289_294.

JANUARY TO JUNE,

TO JUNE, 1895.

WITH V PLATES.

NEW HAVEN, CONNECTICUT.

189 5.

THE TUTTLE, MOREHOUSE & TAYLOR PRESS, NEW HAVEN, CONN.

CONTENTS OF VOLUME XLIX.

Page

SCIENTIFIC INTELLIGENCE.

Chemistry and Physics—Diammonium, CURTIUS and SCHRADER: Nitrogen Triox-

ide, LUNGE and PORSCHNEW, 56.-Physical Properties of Nitrogen Monoxide,

Villard: Use of the Refractive Index for determining Critical Temperatures,

CHAPPUIS, 57.--Constants of Refraction of Carbonyl Compounds, NASINI and

ANDERLINI: Electrolysis of Copper Sulphate in Vacuo, GANNON, 58.—Propaga-

tion of Electromagnetic Waves in Ice and on the Dielectric Power of this Sub-

stance, M. BLONDLOT, 59.- Rotation of magnetic lines, E. LECHER: Magnetiza-

tion of iron and nickel wire, KLEMENCIC: New Storage Battery, M. L. CAILLE-

LET and E. COLLARDEAU, 61.-Resemblances between the grouping of figures on

soap films and the arrangement of stars and nebulæ, QUINCKE, 62.

Geology and Mineralogy-Glacial succession in Europe, 62.-Changes of level

in the region of the Great Lakes in recent geological time, F. B. TAYLOR, 69.-

Introduction to Geology as historical science, 71.-Alab na, Geological Survey,

E. A. SMITH: Manual of Geology, J. D. DANA: Bulletin of the Department of

Geology, University of California, 72.- Mineral Resources of the United States,

D. T. DAY, 73.— Physikalische Krystallographie und Einleitung in die krystal-

lographische Kenntniss der wichtigeren Substanzen, P. GROTH: Manual of

Microchemical Analysis, H. BEHRENS: Handbuch der Mineralogie, C. Hintze,

74.

Botany-Lehrbuch der Botanik, FRANK: Lehrbuch der Botanik, K. GIESEN-

HAGEN: Lehrbuch der Botanik, F. Pax: Lehrbuch der Botanik, E. STRASBUR-

GER, F. NOLL. H. SCHENK, A. F. W. SCHIMPER, 75.---Student's Text-Book of

Botany, S. H. VINES, 76.-Practical Physiology of Plants, F. DARWIN and E.

H. ACTON : Practical Flora for Schools and Colleges, O. R. Willis, 77.—Plan-

zen-Teratologie, systematisch geordnet, 0. PENZIG: Practical Botany for Be

ginners. F. O. BOWER, 78.

Miscellaneous Scientific Intelligence -New Tables of the Planets: Ostwald's

Klassiker der exakten Wissenschaften, 79.

Obituary-LEWIS R. GIBBES: FATHER DENZA, 80.

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