The next No. of this Journal will be published on the first of Nov. 


























CONTENTS. 
- Ant. XXI. On the comparative Expenditure of Heat in different 
forms of the Air-Engine; by Prof. Frepericx A. P. Barnard, 161 
XXII. On the first Hurricane of September 1853, in the At- 
lantic; with a Chart; and Notices of other Storms: by i 
W.C. Reprietp, - - - : - 176 | 
XXIII. Researches upon Ajeaaiarethe and Antivoontusoeiel Hy- 
drogen, and their relations to ee = Professor ay 
Raruazt Naro 190 
_ XXIV. On some of se Crying Pw ve North Aueies : 
by T. S. H 3 
XXV. Ccaavatics Pitliciides and dicteneet in a Coat Sur- | 
vey Report for 1853, —- : - < : 
XXXVI. On the use of Hydrogen Gas and carbene Acid ties to” 
displace Sulphuretted Hydrogen in the analysis of Mineral 
Waters, &c. ; by Prof. W. B. Rocers and Prof. R. E. Rogers, 2h 
_ XXVII. On Changes of the Sea-Level effected by existing Phys- 
ical Causes during stated sie of time; YY ALFRED 

Soar F.G.S.,.- 
I. On Fuchs’s besticad for dias of. ons 

by J, R. Bran fee 
tIX. On Stibiotrisincyle id Stibiobizineyle, two new com- 
i pounds of Zinc and Antimony, with some remarks on the — 
decomposition of water by the ide of these metals; by 
Josian P. Cooxe, Jr, - ~- 2 Fa 
| XXX. On the Nature of Forces; by Lips E..B. Hower, =. 2 
Re | XXXI. Contributions to Mineralogy ; by James D. Dana, - 4s 
Bi XXXII. Notice of the Life and Writings of the late Dr. oe | 
Irving Burnett; by Jerrrizs Wyman, M.D., 


SCIENTIFIC INSEE SSS 
Chemistry and sheeted the Dre and force of the current of the) 
machine, 264 », 266. 
