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THE

AMERICAN JOURNAL

SCIENCE AND ARTS.

CONDUCTED BY

PROFESSORS B. SILLIMAN, B. SILLIMAN, JR.,

AND

JAMES D. DANA,

IN CONNECTION WITH

PROF. ASA GRAY, OF CAMBRIDGE,
PROF. LOUIS AGASSIZ, OF CAMBRIDGE,
DR. WOLCOTT GIBBS, of CAMBRIDGE,
PROF. S. W. JOHNSON, OF NEW HAVEN,
PROF. GEO. J. BRUSH, OF NEW HAVEN.

SECOND SERIES.

VOL. X X X VII.- M A Y, 1864.

[blocks in formation]

CONTENTS OF VOLUME XXXVII.

Page.

Art I. Theory of Earthquakes; by Professor Alexis PERREY, 1

II. The Classification of Animals based on the principle of Ceph.

alization; by James D. Dana. No. II. Classification of

Insecis, . . . . . . . . 10

III. On Fossil Insects from the Carboniferous formation in Illinois ;

by James D. Dana, · · · · · · 34

IV. The Densily, Rotation and Relative Age of the Planets; by

Prof. Gustavus Hinrichs, lowa State University, · 36

V. Researches on the Platinum metals; by Wolcott Glebs, M.D., 57

VI. Tubularia Noi Parthenogenous; by Prof. HENRY JAMES CLARK, 61

VII. Contributions from the Sheffield Laboratory of Yale College.

-No. VI.-On Tephroite ; by Geo. J. BRUSH, . . 66

VIII. Crystallographic Examination of the Acid Tartrates of Cæsia

and Rubidia ; by Josiah P. Cooke, Jr., . . . . 70

IX. Geographical Notices, No. XIX.-Speke and Grani's explora.

tion of the sources of the Nile, 75.-Unger's scientific re. .

sults of a cour in Greece and the lonian Islands, 79.-

Guyot's Physical Wall-maps of the Continents, 80.-Prof.

Whitney on the highest mountains of the United States and

of North America, 81.-Prof. J. D. Whitney's Survey of
California - Proposed Maps, 32. — Recent Australian Ex
plorations : Explorations from Adelaide across the Conii.

nent of Australia ; by J. McDouall Stuart, 84.—Explor-

ation of the Interior of Australia ; by Mr. LandSBOROUGH,

85.—Explorations in the Interior of Australia by the Burke

Relief Expedition, under Mr. J. M'Kinlay, 86.-Dr. Liv.

INGSTONE's recent exploration of the Niassa Lake, 87.-Ex.

ploration of the River Vermejo, in the Argentine Confedera-

tion-Mr. PORTER C. Bliss, 88.

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