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

Sold by H. DAY, New Haven.-LITTLE & BROWN, and W. H. S. JORDAN, Boston.-C. S.
FRANCIS & Co. and WILEY & PUTNAM, New York.-CAREY & HART, Philadelphia.-
N. HICKMAN, Baltimore, Md.-WILEY & PUTNAM, London.-HECTOR BOSSANGE & Co.,
Paris.-NESTLER & MELLE, Hamburgh.

CONTENTS OF VOLUME II.

NUMBER IV.

ART. I. Some Observations on the Ethnography and Archæology

of the American Aborigines; by SAMUEL GEORge Morton,

M. D.,

II. On a new process for obtaining Formic Acid, and on the

preparation of Aldehyde and Acetic Acid by the use of the

Bichromate of Potassa; by Profs. W. B. ROGERS and R. E.

ROGERS,

Page.

1

III. On the Evidence of Fossil Footprints of a Quadruped allied

to the Cheirotherium, in the Coal Strata of Pennsylvania;

by CHARLES LYELL, Esq., F. R. S., F. G. S.

IV. Description and Analysis of a new Mineral Species, contain-

ing Titanium; with some remarks on the Constitution of

Titaniferous Minerals; by THOMAS S. HUNT,

18

25

30

48

V. Observations on the Geology of a part of East Florida, with a

Catalogue of Recent Shells of the Coast; by T. A. CONRAD, 36

VI. The Physical Structure of Plants; by D. P. GARDNER, M. D.,

VII. On Zoophytes; by J. D. DANA,

VIII. Reply to the criticism on Prof. Twining's Demonstation re-

lating to Parallels, .

64

69

IX. Abstract of Thermometrical Records kept at the Missionary

Stations of the American Board of Commissioners for Foreign

Missions in Western Asia; collected and collated by Rev.

AZARIAH SMITH, M. D.,

X. Facts Relating to the Great Lakes; by Prof. C. DEWEY,

XI. On the occurrence of Fluor Spar, Apatite and Chondrodite in

Limestone; by JAMES D. DANA,

XII. Description of a peculiar arrangement of muscles in the

Glass Snake, (Ophisaurus); by Prof. W. M. CARPENTER,

A. M., M. D.,

XIII. Observations on the more recent researches in the Manufac-

ture of Iron; by J. LAWRENCE SMITH,-(continued,)

. 95

SCIENTIFIC INTELLIGENCE.

Chemistry.-Ozone, 103.-Quantitative determination of Urea in Urine, by W.

HENTZ, 119.-Determination of the amount of Ammonia contained in the At-

mosphere, by A. GRAEGER: Test for Ruthenium, by M. CLAUS: Iodine used to

distinguish between the Arsenical Antimonial taches formed by Marsh's Appa-

ratus, by M. LASSAIGNE, 111.-On the Decomposition and Analysis of the Com-

pounds of Ammonia and Cyanogen, by R. SMITH: Preparation of the Hypo-

phosphite of Baryta, by M. WARTZ: New Acid in Tobacco, by M. BARRAL:

Valerianic Acid and a New Substance from Caseine, by Prof. LIEBIG, 112.—