APPENDIX C. 287 



1851. 264. On the Mansfield coal formation. Proc. Amer. 

 Acad. Arts and Sc., Vol. II., pp. 270-271. Boston, November, 

 1851. 



1851-1855. 265. Grundziige der Geologic, 1851-1854, and Die 

 Zoologie. 1855. By Agassiz, Gould, and Perty. Stuttgart und 

 Leipzig. An unauthorized publication. 



1852. 266. Ueber die Gattung unter den nordamerikanischen 

 Najaden. Wiegmann Archiv, Naturgesch., Vol. XVIII., pp. 41- 

 52. Reprinted in part by Isaac Lea in "Synopsis of the family of 

 Unionidae, 11 pp. xxii-xxiii. Fourth edition. 4to. Philadelphia, 

 1870. 



1852. 267. Hugh Miller, author of "Old Red Sandstone" 

 and "Footprints of the Creator, 11 Cambridge, September, 1850. 

 Printed in The Footprints of the Creator, from the third London 

 edition, with a memoir of tJie Author by Louis Agassiz, pp. xi- 

 xxxvii. Boston, 1852. 



1852. 268. Des relations naturelles qui existent entre les ani- 

 maux et les milieux dans lesquels ils vivent. Bibl. Univ. Geneve, 

 -Arch. Sc. Phys. et Nat., 4 e serie, Vol. XIX., pp. 15-31. Geneve, 

 1852. 



1852. 269. Zoological notes addressed to J. D. Dana. Amer. 

 Journ. Sc., 2d Series, Vol. XIII., pp. 425-426. May, 1852. 



18^2. 270. Diversity of origin of the human race. Proc. 

 Amer. Acad. Arts and Sc., Vol. III., pp. 7-8. Boston, June, 1852. 



1852. 271. On the Allantois. Proc. Amer. Acad. Arts and 

 Sc., Vol. III., pp. 15-16. Boston, July, 1852. 



1852. 272. On organic tissues. Proc. Amer. Acad. Arts and 

 Sc., Vol. III., pp. 21-22. Boston, October, 1852. 



1852. 273. The earliest larval state of Intestinal Worms. In- 

 fusoria. Edinb. New Phil. Journ., Vol. LIII., pp. 314-315. 1852. 



1853. 274. Sur les Poissons des Etats-Unis. Comptes Rendus 

 Acad. sc. France, Vol. XXXVII., p. 184. Paris, 1853. LInstitut, 

 p. 287. Paris, 1853. 



