THE

ANNALS

OF

PHILOSOPHY.

NEW SERIES.

JANUARY TO JUNE, 1825.

VOL. IX.

AND TWENTY-FIFTH FROM THE COMMENCEMENT.

STOR

London:

Printed by C. Baldwin, New Bridge-strec! ;

FOR BALDWIN, CRADOCK, AND JOY,.:

PATERNOSTER-ROW.

LIBRARY

NEW-YORK

1825.

TABLE OF CONTENTS.

NUMBER I.-JANUARY.

Mr. Colquhoun on the Life and Writings of Claude-Louis Berthollet....

Mr. George on the Chloride of Titanium ............

Page

1

18

Mr. South's Corrections in Right Ascension of 37 Principal Stars

Mr. Gray on the Structure of Pearls, and on the Chinese Mode of pro-

ducing them of a large Size and regular Form....

21

......

27

Mr. Webster's Reply to Dr. Fitton. (With a Plate.).....................

Mr. Thomson on the Discovery of Selenium in the Sulphuric Acid made

from the Pyrites of Anglesey.

Mr. Phillips's Reply to Mr. Whipple......

Analytical Account of an Explanatory Dictionary of the Apparatus and

Instruments employed in the various Operations of Philosophical and

Experimental Chemistry. ....

30

31

82

33

52

53

Proceedings of the Royal Society..

Saline Efflorescence upon the Surface of Bricks..

Solubility of Oxide of Cobalt in Ammonia.-Cobaltic Acid.

Composition of Garnet....

70

Mr. Colquhoun on the Life and Writings of Claude-Louis Berthollet.

(continued).:

81

97

109

Sir A. Crichton on the Climate of the Antediluvian World, and its Inde-

pendence of Solar Influence; and on the Formation of Granite........

Col. Beaufoy's Meteorological Table kept at Bushey Heath for 1824. ....

Rev. Mr. Emmett on the Mathematical Principles of Chemical Philosophy 109

Major Macintosh on some Tumuli near the Falls of Niagara...

M. Berzelius on Fluoric Acid (continued) .

Col. Beaufoy's Astronomical Observations.

122

124

131