AMERICAN JOURNAL

OF

SCIENCE AND ARTS.

CONDUCTED BY

PROFESSOR SILLIMAN

AND

BENJAMIN SILLIMAN, JR.

VOL. XLIV.-APRIL, 1843.

NEW HAVEN:

Sold by B. NOYES.-Boston, LITTLE & BROWN and W. H. S. JORDAN.—
New York, WILEY & PUTNAM, C. S. FRANCIS & Co., and G. S. SILLI-
MAN.-Philadelphia, CAREY & HART and J. S. LITTELL.-Baltimore,
Md., N. HICKMAN.-London, WILEY & PUTNAM.-Paris, HECTOR
BOSSANGE & Co.-Hamburgh, Messrs. NESTLER & MELLE.

PRINTED BY B. L. HAMLEN.

CONTENTS OF VOLUME XLIV.

NUMBER I.

ART. I. Geological and Miscellaneous Notice of the Province of

Tarapaca; by JOHN H. BLAKE-with a map,

II. A New and Simple Method to find the Perpendicular

Height of Mountains, Headlands, &c. above any given

datum, from Barometrical and Thermometrical Observa-

tions; by Prof. OLIVER BYRNE, -

III. Description of Ancient Remains, Animal Mounds, and

Embankments, principally in the counties of Grant, Iowa,

and Richland, in Wisconsin Territory; by S. TAYLOR—

with four plates,

IV. Remarks and Observations on the Formation of Fogs; by

Prof. W. M. CARPENTER, M. D., -

V. Abstract of a Meteorological Register, kept at Jackson,

(Louisiana,) during three years ending Jan. 1, 1842; by

W. M. CARPENTER, M. D.,

VI. Some remarks on the methods in common use of obtaining

the Mean Temperature of Places, and on the supposed

difference between the Temperature of the Air and that

of the Earth; by Prof. W. M. CARPENTER, -

VII. Notices of some Trappean Minerals found in New Jersey

and New York; by Prof. LEWIS C. BECK,

Page.

1

12

21

-

40

49

50

54

VIII. A short notice of the Action of Potash upon Cholesterine;

by J. LAWRENCE SMITH, M. D.,

IX. A Review of the Researches upon the Dilatation of Gases,

by M. V. Regnault; by J. LAWRENCE SMITH, M. D.,

X. Description of the Bones of a New Fossil Animal of the

Order Edentata; by R. HARLAN, M. D., F. L. S., &c.—

with three plates,

XI. An Account of some new and rare Plants of North Caro-

lina; by M. A. CURTIS,

80

XII. Selections from the Scientific Correspondence of Cadwal-

lader Colden with Gronovius, Linnæus, Collinson, and

other Naturalists; arranged by ASA GRAY, M. D.,

85