GONTENTf. 



Page 

 Art. X. Jn inquiry into the true nature of Instinct j and of 



the Mental Distinction between Brute Animals and Man. 

 Essay III. On the Specijic Constitution of the Brute 

 Mind, and its modifications under Human Influence: 

 including an analysis of the theory of Brute Action con- 

 tained in Dr. Hancock's " Essay on Instinct, and its 

 Physical and Moral Relations.'^ By John Oliver 

 French, Esq 71 



Art. XI. The characters and descriptions of several Birds 

 belonging to the genus Thamnophilus. By William 

 SwAiNsoN, Esq. F.R. Sf L.S. Sfc 84 



Art. XII. Descriptions of some Shells, belonging principally 

 to the genus Chiton, observed on the Coast of Argyleshire 

 in the Summer 0/ 1824. By R. T. Lowe, Esq 93 



Art. XIII. A List of the Species of Vespertilionidce found 

 in Great Britain. By John Edward Gray, Esq. 

 M.G.S. 108 



Art. XIV. Descriptions of some hitherto uncharacterized 



Brazilian Birds. By George Such, M.D. F.L.S.. . 1 10 



Art. XV. Analytical Notices of Books : — 



Annates du Museum d'Histoire Naturelle. 1824. Parts 



4 and 5 118 



Simiarumet Vespertilionum Brasiliensium Species Novw; 

 ou Histoire Naturalle des Singes, <5rc. Publiee par 

 JeandeSpix. Munich, 1823. Atlas folio, pp. yiiu 



andll. tab. xxxviii 121 



Philosophical Transactions for the Year 1824. Part 2.. 126 



Curtis^ s British Entomology 1 28 



Sowerby's (G. B.) Genera of Recent and Fossil Shells 129 



Art. XVI. Proceedings of Learned Societies : — 



Royal Society 1 30 



Linnean Society 133 



Zoological Club of the Linnean Society ibid. 



Geological Society , 137 



Portsmouth and Portsea Literary and Philosophical 



Society HI 



Royal Academy of Sciences of Paris 142 



