CONTENTS v 
CHEMICAL SCIENCE. 
Page 
1. Robiquet on a new metallic dye, - . - - - 197 
2. Purple precipitate of silver, gold, &c. -- - - 198 
3. On the manufacture of sulphuric ether, - - - 199 
MECHANICAL PHILOSOPHY. 
1. Remarks on the floating ice met with | in ca, low lati- 
ri s in the South Seas, - - - : 
2. Red b - - - - - ~ 201 
3. Feeding - in - - - oe - - - 202 
STATISTICS. 
1. Academy of St. Petersburgh, - - - - - » 203 
2. Astronomical memoranda, - - - . - - 204 
—-o— 
NUMBER Il. 
Art. I. On the Water Courses, and the Alluvial and Rock Forma- 
: tions of the Connecticut River Valley ; by ALrrep Smiru, 205 
II. Memoir of the Life of Thomas Youne, M. D., F.R.S., &c. 232 
lll. An Essay on the Chemical Nomenclature of Prof. Ber 
zeLivus, prefixed to his treatise on Chemistry. Trans- 
lated from the French, with notes, by Prof. A. D. Bacue, 248 
IV. On the law of the partial polarization of ee by re- 
flexion; by Daviw Brewster, LL.D. F.R.S.L.&E., 277 
V. Notice of new Medical Preparations; by G. W. Cuties, 293 
VI. Meteorological Table; by Gen. Martin Fretp, - 298 
VII. Observations on the Primitive and other Boulders of 
Ohio; by Darts and Increase A. Larnam, - 
VI. the method of tracing oval arches from sovilad cen- 
tres; by Epwarp Miter, A. M., Civil Engineer, 303 
1X. we the Chemical Composition ee the Brown Lead Ore; 
C. Kersten, of Fre pert Translated from the 
. by Cuarzes U. Sueparp, 307 
X. on of the Nine Inch Conical Rain Gage; by Ss. 
De 
3 
XI. An ptt of srer descents ina Diving Bell, at Ports. : 
mouth, N. H.; Rey. Timoruy Atpen, 325 
XII. am = Resa roe of Cold Medicinal Waters; 
- 330 
XIIL. os fe sete a the Soman di Ronan . 336 ~ 
