THE

AMERICAN JOURNAL

OF

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 NEW YORK.

SECOND SERIES.

VOL. XIX.-MAY, 1855.

NEW HAVEN: EDITORS.
NEW YORK: G. P. PUTNAM & CO.

Printed by B. L. HAMLEN-Printer to Yale College.

St

253528

CONTENTS OF VOLUME XIX.

NUMBER LV.

Page.

ART. I. Account of some Volcanic Springs in the Desert of the

Colorado, in Southern California; by JOHN L. LECONTE, M.D., 1

II. On the Geographical Distribution of Crustacea; by JAMES

D. DANA,

III. Contributions to Mineralogy; by Dr. F. A. GENTH,

IV. On the Diamagnetic Force; by Prof. TYNDALL,

6

15

24

V. Reply to some remarks by W. H. Wenham, and Notice of

a new locality of a Microscopic Test-object; by Professor

J. W. BAILEY,

28

VI. On the bearing of the Barometrical and Hygrometical Ob.

servations at Hobarton and the Cape of Good Hope on the

general theory of the Variations of Atmospherical Phenom-

ena; by Professor Dove,

VII. On the Composition of Eggs in the the series of Animals--

Part I. By A. VALENCIENNES and FREMY,

VIII. The Arabic or Indian Method of Notation; by THOMAS H.

MCLEOD,

31

38

48

IX. On the Effect of the Pressure of the Atmosphere on the

Mean Level of the Ocean; by Captain Sir JAMES CLARK

Ross, R.N., F.R.S.,

X. Report to the Academy of Sciences, Paris, on the Researches

relative to Earthquakes of M. Alexis Perrey; by the Com-

mission, MM. LIOUVILLE, LAMÉ, and ELIE DE Beaumont,

XI. On the Periodical Rise and Fall of the Lakes; by MAJOR

LACHLAN,

XII. Synopsis of the Ichthyological Fauna of the Pacific slope of

North America, chiefly from the collections made by the

U. S. Expl. Exped. under the command of Capt. C. Wilkes,

with recent Additions and Comparisons with Eastern types;

by L. AGASSIZ,

71

100

XIII. Thoughts on Solution and the Chemical Process; by

T. S. HUNT,