145 



Transactions of the Royal Society of London, from 1830 to 

 1837, inclusive. Vol. III. 1830 to 1837. Presented by the 

 same. 



Proceedings of the Royal Society of London. Nos. 28, 

 2d, 30. Presented by the same. 



Journal of the Royal Asiatic Society of Great Britain 

 and Ireland. No. 8. Presented by the Society. 



Essays on Unexplained Phenomena. By Graham Hutch- 

 inson. Presented by the Author. 



On the Functions of the Cerebellum, by Drs. Gall, Vimont, 

 and Broussais. Translated from the French by George 

 Combe. Also, Answers to the Objections urged against 

 Phrenology by Drs. Roget, Rudolphi, Prichard, and Tiede- 

 tnann. By George Combe and Dr. A. Combe. 8vo. Edin- 

 burgh, 1838. Presented by George Combe, Esq. 



Bulletin de la Societe Geologique de France. Tom. IX. 

 Feuilles 1—5, 1837 a 1838. Presented by the Society. 



March 26. (Adjourned Meeting.) 



SIR Wm. R. HAMILTON, A. M., President, in the Chair. 



A paper, by Mr. Carroll, on the Motion of the Boomerang, 

 was read. In this paper the author seeks to explain the 

 properties of the flight of the weapon by assimilating the 

 effect of the air's resistance on it to that exerted upon a flat 

 circular disc. 



Professor Lloyd, V. P. made a few observations upon the 

 same subject, in which he endeavoured to show that the pe- 

 culiar movement of this projectile was but an extreme case 

 of acknowledged laws. When a body moves in a resisting 

 medium, and when the resultant of all the forces of resis- 

 tance, which act upon the several portions of its surface, is 

 not contained in the vertical plane of projection, the body 

 must deviate from that plane. This is generally the case in 



