CONTENTS OF VOLUME XVIII. 

NUMBER LII. 
Page. 
Arr. I. On the first Hurricane of September 1853, in the At- : 
lantic; with a Chart; and Notices of other Storms: as 
W.C. Reprietp, - 1 
Il. Account of a Rainbow See by vee ‘eineied & from Waser; ; 
by Prof. E. S..Snezb,. - . - 18 
Ill. On Changes of Sea-Level effected by existing Pisin’ Cesies 
during stated periods of time ; by Atrrep Tytor, F.G.S., 21 
*V. On the Phosphate of Iron and Manganese from Norwich, 
Mass., by Dr. J. W. Mauer, 33 
V. On the Homceomorphism of la Spesis of the Trimetric 
System; by James D. Dan . 35 
VI. On certain Physical sane of Light, sipreduced = the 
combustion of different Metals, in the Electric ae re- 
fracted by a Prism; by Davip Atte, M.D., 55 
VIE. Chinese and Aztec Plumagery; by D. J. escoouan M. D. a OT 
VILL. Binocular Microscope; by Dr. E. D. Nortx, - 61 
IX. Mechanical Action of Heat; by W. J. Macquorn aime 64 
X. On the Resistance experienced by Bodies falling irons the 
Atmosphere; by Prof. Exras Loomis, 67 
XL The Brandon Tornado of January 20th, 1854; - Prof. 0. N. 
Stopparp, - - - : - sae |, 
XII. Considerations on ths Gpat of Small Planets situated be- 
tween Mars and Jupiter; by M. U.-J. Le Vernier, - - 80 
XIE. Oa Electric Induction—Associated cases of Current and 
Static Effects; by Professor Farapay, D.C.L., F.R.S., - 84 
XIV. Reclamation of Borocalcite, as distinct from a mixture of 
minerals, found near Iquique, South Peru; by A. A. Haves,M.D., 95 
XV. On the present condition of the Crater of ae Hawaii ; 
by Rev. Tirus Coan, - - 96 
XVI. Note on the genus Buckleya ; _by Asa Gnay, M.D., oO 
XVII. On a mode of giving permanent flexibility to brittle spe- 
cimens in Botany and Zoology; by Prof. J. W. Bamey, - 100 
