Peg “ ~ Commercial Biitin : Astronomical emer Cambridge, 148.—Seientific An- 
“ie ere _—. Encyclopedia, by G. Hécx, translated by Professor 8. F, 
Ye Ne AIR 
List of = 149. 
we APPENDIX. 
Report on the Experience of the Coast Survey in regard to Tele- 
graph Operations, for determination of Longitude, &c., 151. 
NUMBER XXIK, 
Art. XV. Observations on the ae oe in thes Physi cal Be 
and Resources between the Old World and the New World; 
—__ by Prof. Arnoup Guyor 161 
XVI. On the relation of the This of MAisaica’s to Perpetual 
Motion; by Jeremiah Day, -~ - 174 
ad Il. Bonicibutions to the Mycology of North ace, ; rm 
7 Rev. M. J. eat of — and Rev. M. A. Curtis, 
of South C Carolina, - 185 
Ex ental ‘Researches i in Electricity. sh eeaty: third. 
HAEL Farapay, Esq., D.C.L., F.B.S., etc, 188 
the Grass-cloth of China is manufactured. — 2 ates 
by Dr. D. J. Maccowan, in a letter to” ‘Sir Jame Hume, 
Hon. Sec. of the Agric. Society of India, - 
_ XX. On the Quantity of Heat evolved from , Se Air by 
ee _ Mechanical Compression ; ; by Joun Gorrie, M.D., - -. 214 
Ce x cL: Notice of Remains of. Vertebrated Animals bond, at Rich- 
— mond, Virginia ; by JerFrigEs Wyman, M.D., 228 
“xXIL. On the Poicanic Eruptions of Hawaii ; 4 ee D. Dax, 235 
Sie ici a, - - 245 
Ms 
<= ie “SCIENTIFIC INTELLIGENCE. 
ysics.—On the P; fM i d, by Dr. F. Kex- 
R; On the Amid Compounds of Tungsten, by Prof. eo ad 256.—On the 
of lodid of Potassium, by Prof. Scuéspzix: On Furfurol, by 
ar the action of Chlorine upon Lactic Acid, by G. Srarpe- 
Oxychlorid of Carbon, by A. W. Hormann : On the Prep- 
n of pure oxyd.of Cobalt, by P. Lovynr: On the action of heat upon the 
ate of Lime, ‘ . GucKELBERGER, 258.—On the determination of Ni- 
NoELLNER : Examination of Castoreum, by F. Wornter: On the 
_and Metamorphoses of Conine, by J. BuytH, 259.—On the Com- 
Metathorphoses of Piperine, by Tu. Wexruem ; On a New Gun- 
= &, 
' CONTENTS. : Lge 
he 
Rode 
4,92 
‘i 
ane oie 
