CONTENTS. 



No. II. June, 1824. 



Page 

 Art. XIX.— Monograph on the Cypreeidce, a Family of Tes- 

 taceous Mollusca. By Mr. John Edward Gray, 



M.G.S. (continued.) 137 



Art. XX.— An Inquiry respecting the true nature of In- 

 stinct, and of the Mental Distinction between Brute 

 Animals and Man.— Essay II.— An Examination of the 

 prevailing Division of (he Brute Powers into Intellectual 

 and Instinctive, as presented, in some recent publications, 

 by the Rev. Dr. Fleming, and by M. Frederic Cuvier; 

 including Strictures on the Theory of Habit proposed by 

 the latter : with Illustrations of the Specific Constitution 

 of the Brute Mind. By John Oliver French, Esq. 153 

 Art. XXL— Abstract of a Memoir on the Physiology of 

 Helix Pomatia; by B. Gaspard, M. D. With Notes, 



by T. Bell, Esq. F.L.S. (concluded.) 174 



Art. XXII.— Sowe Observations on the Nomenclature of 

 Ornithology ; particularly with reference to the admis- 

 sion of New Genera. By N. A. Vigors, Jvn. Esq. 



A. M. F. L.S * 80 



Art. XXIII.— Remarks on the Animal Nature of Sponges, 



By Thomas Bell, Esq. F.L.S 202 



Art. TLXIV.—Co7ichological Observations, being an attempt 

 to fix the study of Conchology on a firm basis. By 



Mr. John Edward Gra y, M.G.S 204 



Art. XXV.— Correction of the Characters of the Genus Bel- 

 lerophon, established by De Montfort, in his Conchylio- 

 logie. By M. Defrance 



