THE

EDINBURGH

PHILOSOPHICAL JOURNAL.

THE

EDINBURGH

PHILOSOPHICAL JOURNAL,

EXHIBITING A VIEW OF

THE PROGRESS OF DISCOVERY IN NATURAL PHILOSOPHY,
CHEMISTRY, NATURAL HISTORY, PRACTICAL MECHANICS,
GEOGRAPHY, NAVIGATION, STATISTICS, AND THE FINE
AND USEFUL ARTS,

PRINTED FOR ARCHIBALD CONSTABLE & CO. EDINBURGH;

AND HURST, ROBINSON & CO. LONDON.

1823.

G

52876

CONTENTS

OF

No. XVII.

Page

ART. I. Biographical Memoir of Count CLAUDE LOUIS BER-

THOLLET,

II. Account of Captain HODGSON's Journey to the Source

of the Jumna, and of the Snow Excavations at Jum-

notri, formed by the steam of Hot Springs,

III. On Petrifactions, or Fossil Organic Remains. By Ba-

ron ALEXANDER HUMBOLDT,

-

IV. On certain Electrical Phenomena observed at Sea, with

an Account of the Fire of St Elmo,

V. Account of Captain SCORESBY's Magnetical Discove-

ries, and of his Magnetimeter and Chronometrical

Compass,

-

VI. Description of Achmite, a New Mineral from Norway,

found and described by P. STRÖM,

7

20

35

41

55

VII. On the Measurement of the Progress of an Eclipse of

the Moon with a Sextant, or Reflecting Circle. By

T. E. BOWDICH, Esq. Communicated by the Author, 57

VIII. Remarks on the Increase of the Population of the United

States and Territories of North América, with Ori-

ginal Tables, deduced from the American Popula-

tion Returns, to illustrate the various Rates of In-

crease in the White Population and Slaves, and also

the Comparative degrees in which Agriculture, Com-

merce and Manufactures prevail. By GEORGE HAR-

VEY, Esq. M.G.S., M. A.S., &c. (Continued from

Vol. VIII. p. 339.)-SLAVE POPULATION,

63