CONTENTS 



OP 



THE QUARTERLY JOURNAL, 



N°. XXXVI. 



ART. PAGE 

 I. Results of Experiments relating^ to the comparative Means of De- 

 fence afforded by Ships of War, havings Square and Curvilineal 

 Sterns. By George Harvev, Esq., F.R.S.E., M.G.S., &c. 

 {tvith two plates.) 201 



n. On the Motion of the Heart. By James Alderson, Esq., B.A., 



Fel. of Pern. Col. Cam., and of the Cam. Phil. Soc 223 



HI. Notes on the Geography and Geology of Lake Superior. By 



John Bigsby, M.D., F.L.S., and M.G.S 22S 



IV. A Description of a Method invented by Mr. Jeffreys, of 

 Bristol, for condensiug Smoke, Metallic Vapours, and other 

 Sublimed Matters, by which they are prevented from passing off 

 into the Atmosphere 270 



V. A Monograph of the Genus Ancillaria, with Descriptions of se- 



veral new Species. By W. Swainson, Esq., F.R.S., F.L.S,, 

 M.W.S., &c 272 



VI. A Letter from Sir Everard Home, Bart., respecting a State- 

 ment published by Dr. Bostock in his Elements of Physiologj'. 290 



VII. Facts towards the Chemical History of Mercury 291 



VIII. Extracts of Letters from W. J. Banks, Esq,, containing' an 

 Account of Mr. Linant's Expedition to Sennaar, with a Latin 

 Inscription from Meroe 298 



IX. On the Radiation of Heat in the Atmosphere ; in reply to Mons. 

 GAy-Lu8SAC. By J. F. Daniell, F.R.S 30S 



