- a ee ce 
CONTENTS. © Fo Ca we 
sil Caoutchouc, 215.—Gold i in France: Avéniiahgrepiitint z 
_ of Sugar: Action of Alcohol upon Alkalies, 216. —Iodine in © ee 
Coal: Six new species of Kangaroo, 217.—Proceedings of the Pin 
Tenth Meeting of the British Association: N weroiogy; 218. in 
-* is 
NUMBER II. : : 
* Arr. L,.Notios of the Botanical Writings of the late Cas Rai- > * @ 
22 
nesque, . : €. tay 
If. Abstract of a Letter to Baron_A. Humbolt, upon the In- 
vention of the Mariner’s Compass, 242 
III. A Method of determining the Temperature of Beccary 
> 
in a Siphon Barometer, from the observed upper and low- + 
er.readings; and of testing the accuracy of the instru- 
ment; by Prof. Farranp N. Benepicr, , 
IV. Catalogue of the Mollusca of Middlebury, vt ae vicini- 
ty, with observations; by Prof. C. B. Apams, 266 
V. On the Means of detecting Arsenic in the Animal Body, 
~~ and of counteracting its Effects; by J. Lawrence Situ, 
ma 2 OUD, eS gg 2 
VE. On the Extrication of the Alkalifiable Metals, Barium, 
Strontium, and Calcium; by Prof. Ropert Hare, M. ee 293 
VIL. Dehription of an Apparatus for seine ae 
Phosphurets, or Cyanides, in vacuo or in an Atmosphere 
_. of Hydrogen, with an accoun ee ; obtained 
_ by these and by other méans ; especially the Isolation of — 
Calcium; by Rosert Hare, M.D., . 
VII. Abstract of the Proceedings of the Tenth Meccines of the 
/ British Association for the advancement of Science, 
Ix, Abstract of a Meteorological Journal for the year 1840, 
kept at Marietta, Ohio; by S. P. Hitpretn, M. D, 
X. Contributions towards a History of the Star-Showets of 
= Tormer Times; by Epwarp C. Herricx, . = 
XI. On’Native and Meteoric Iron; by Prof. CHARLES Umax 
SHEPARD, 
XII. On the First or Boatiexs Coal Field of «Penna h 
M. Carey Lea, ‘ 
XIII. Proceedings of Scientific Sociedes 
_ XIV. Bibliographical Notices :—Plante Es i 
Hooker’s Icones Plantarum, 391.—The Linnza, 392.— 
* Reports on the Progress of Botany, 393. 
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