ii CONTENTS. 



Page 

 Art. XIII. Biography of M. Bosc. By Baron Cuvier, - 274 

 XIV. On the Land Crabs of Jamaica. By Alexander 



Barclay, Esq. _ _ . 280 



XV. On the Red Pigment called Carucru or Chica. By 

 John Hancock, M. D. (Communicated by the 

 Author), - - . . 283^ 



XVI. Report on the Impression made on the Ground by 

 the Foot of the Sow. (Communicated by Messrs 

 Robert SpiTTALand Robert Stevenson junior), 285 

 XVII. On the Tertiary Fresh-water Formations of Aix, in 

 Provence, including the Coal-field of Fuveau. By 

 Roderick Impey Murchison, Esq. and Charles 

 Lyell, Esq. junior, Secretaries to the Geological 

 Society ; with [a Description of Fossil Insects, 

 Shells and Plants, contained therein, by John 

 Curtis, F. L. S., J. De C. Sowerby, F. L. S., and 

 J. Lindley, Esq. Professor of Botany in the Lon- 

 don University. (Communicated by the Au- 

 thors), . . - . 287 

 XVIII. Inquiries respecting the Relative Age of Moun- 

 tains, .... 299 

 XIX. Observations on the Caymans or AUigators of Gui- 

 ana. By John Hancock, M. D. (Communicat- 

 ed by the Author), - . - 393 

 XX. Researches in regard to the Ancient History of our 

 Domestic Animals, and our Common Plants. By 

 M. DuREAU de la Malle, - - 309 

 XXI. Observations connected with the Migration of the 

 Herring and Mackerel, as noticed in the British 

 Channel. By Major W. D. Morrison. (Comr 

 municated by the Author), - - 317 

 XXII. On the Naturalization of the Cashmeer Shawl- 

 Goat in England. By C. T. Tower, Esq. of 

 Weald Hall, Essex, - - - 321 

 XXI 1 1. On the German Polish for Wood, - - 323 

 XXIV. Inquiries respecting certain Changes observed to 

 have taken place in Domestic Animals, transport- 

 ed from the Old to the New Continent. By M. 

 RouLiN, M.D., - - - 326 

 XXV. On the Action of the Spinal Marrow in Respira- 

 tion. By M. Flourens, - - 338 : 

 XXVI. On the Vision of the Mole. By M. Geoffroy 



Saint Hilaire, - - 340' 



