THE

EDINBURGH

PHILOSOPHICAL JOURNAL

EXHIBITING A VIEW OF

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

52868

71

CONTENTS

OF

No. I.

ART. I. On a New Optical and Mineralogical Structure exhibit-

ed in certain specimens of Apophyllite and other mi-

nerals. By DAVID BREWSTER, LL. D. F. R. S. &c.

II. On the Hyposulphurous Acid and its Compounds. By

J. F. W. HERSCHEL, Esq. F. R. S. &c.

III. Application of the Indeterminate Analysis to the elimi-

nation of the unknown quantities from two Equations.

By WILLIAM WALLACE, Esq. F. R. S. Edin.

IV. Description of a New Hygrometer, made of the internal

membrane of the Arundo Phragmites. By ALEXANDER

ADIE, F. R. S. Edin.

V. Account of an Excursion to Thebes, and of the Anti-

quities recently discovered in that City. In a Letter

from a Scotch Gentleman in Cairo,

VI. Experiments on the Structure and Refractive Power of

the Coats and Humours of the Human Eye. By Da-

VID BREWSTER, LL. D. F. R. S. Lond. & Edin. and

the late JOHN GORDON, M. D. F. R. S. Edin.

VII. Demonstration of a Theorem relating to Prime Numbers.

By CHARLES BABBAGE, Esq. F. R. S. &c.

VIII. Description of the Diamond Mine of Panna. By FRAN-

1

8

29

32

33

42

46

CIS HAMILTON, M. D. F. R.S. & F.A.S. Lond. & Edin. 49

IX. Description of the Patent Sympiesometer or New Air

Barometer. By ALEXANDER ADIE, F. R. S. Edin.

X. Method of Weighing Anchors, used by the Natives of

the Coast of Coromandel,

XI. Examination of some Compounds which depend upon

very weak Affinities. By JAGOB BERZELIUS, M. D.

F. R. S. and corresponding Member of the Institute

of France,

XII. Comparison between the length of the Seconds Pen-

dulum, as determined by Mr Whitehurst and Captain

Kater. By EDWARD TROUGHTON, Esq. F. R. S.

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