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THE
EDINBURGH
PHILOSOPHICAL JOURNAL.
July 7, 1944
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.
P. NEILL, Printer, Edinburgh.
34 85° 87-16
DEVON & EXETER
INSTITUTION.
OF
No. XIX.
Page
ART. I. Remarks on the Influence of Magnetism on the Rates of
Chronometers. By GEORGE HARVEY, Esq. M. G. S.
M. A. S., &c. &c.
II. Description of the Whirlwind at Scarborough on the
24th June 1823. By JOHN DUNN, Esq. Fellow of
the Royal College of Surgeons, London,
III. Observations on the Heights of the Himalaya Moun-
tains, with the Measurements of Lieut. A. Gerard,
and Mr J. GERARD. BY WILLIAM LLOYD, Captain
of the Bengal Army,
1
11
18
Corrected TABLE of the Heights of the Snowy Peaks of the
Himalaya Mountains,
21
IV. Observations on Bees, and particularly on the conver-
sion of the Larvæ of Working-Bees into Queen-Bees.
By the Reverend Mr DUNBAR of Applegarth,
V. On the Refractive and Dispersive Power of different
Species of Glass, in reference to the improvement of
Achromatic Telescopes, with an Account of the Lines
or Streaks which cross the Spectrum. By Joseph
FRAUENHOFER of Munich. Concluded from Vol. IX.
p. 299.
22
26
VI. On Rock Formations. By Baron ALEXANDER Hum-
BOLDT,
40
VII. Description of a simple, cheap, and accurate Method of
experimenting on small quantities of Gases, by means
of Bent Tubes. By Mr WILLIam Kerr,
VIII. Account of the Earthquake which happened in Chili,
on the 19th of November 1822,
53
56
IX. Account of two Maps of Zænmæ or Yangoma. By
FRANCIS HAMILTON, M.D. F.R.S. & F.A.S. Lond.
& Edin. With a Plate,
59