on as 
ay 
Bie 
¥ 
CONTENTS. 
tie pine s Page. 
ik Hawait, (Owyhee,) and its Volcanic Regions and Pro- 
du ction ns; with notices of its — and of those 
">. Of Oahu,  ~* 228 
IV. List of the Plants of Chile; translated from the Span- 
ish b USCHENBERGER, U. 248 
4 € Hetenrolégical Tables; by "Gen. Martin Fiexp, 261 
' VL. On the Achromatic Microscope ; by Epwarp ‘Tuomas, 265 
VII. On the employment of Sulphate of Copper, &c. in the 
making of Bread, erenenied to the Board of Health 
of the department du Nord, (April, 1830); from the 
French of M. Kuutmann ; translated y J. Griscom. + 269 
VII. Chemical Examination of the Bark of the White =i 
y Owen Mason, of Providence, R. I. - 
IX. On Analytical Geometry ; by C. Wizprr. - + 285 
“X. On Central Forces; by Prof. Tuzopore Srrone, 291 
XI. An easy solution of a Pipetese: as cise lie A. 
WHEELER, 
XII. Halos. —Solar and tae r, 297 
XIII. Notices of Eminent Men aaciined in Great Britain, 300 
XIV. Observations and Experiments on the rapid production 
: of Steam in contact with ae zt a high eget 
ture; by Prof. Wanrer R. 
XV. Safety Apparatus for Steam Beats: ” by Prof A. D. 
Bac 
: KYVIs eins of Prof. Renwick’s Treatise on the Gin 
ngine, 
XVII Ona Heciprocatuie “matfon produced byt Magnetic At- 
traction and Repulsion; by.Prof. Josern-Heyny, 340 
XVIII. Description and History. of a new ‘Plant, Tilia Pyc- 
gona ag | Dr. M. C. piarenee WORTH. Siege 
a draw % 343 
XIX. Notice of ‘he me ethod of migtdee cating’ the pecking 
Shes Acid, as Bee es in bo cig 8 by Tu 1OMAS 
347 
XX. Observations’ and Fxperiiasats on List and Vista, and 
the cause of prismatic analysis ; by Dr. C. Conwext, 350 
XXII. On Storms and Meteorological Observations ; by Prof. 
MiTcHELL - 3 
XXIl. Report of Messrs. Cooper, —— and De Ki: on Fou 
sil Bones from Big Bone Lick, Kent ntucky, 70 
XXIII. Prof. Otmsten’s Reply to Dr. Christie on Hail Storms: 373 
MISCELLANIES—FOREIGN AND DOMESTIC. 
NATURAL HISTORY. 
#? 2. The ey formerly called the Siberian Elm—Change 
+ 3 di iminu 2 of pera g ee a on the surface 
3. Monography of the genus Cyprea, - - - 379 
