144 LIST OP CONTRIBUTORS. 



Osborn, Henry Fairfield. Preliminary observations upon the 

 brain of Aniphiuma. P '83, 177 



Preliminary observations upon tbe brain of jMenopoma. P 



'84, 262 



Observations upon the Upper Triassic mammals, Droana- 



therium and Microeonodon. P '86, 359 



On the structure and classification of the Mesozoic Mammalia. 



P '87, 282 ; J IX, 186 



— Additional observations upon the structure and classifica- 

 tion of the Mesozoic Mammalia. P '88, 292 



— A review of the Cernaysian Mammalia. P '90, 51 

 A review of the Cretaceous Mammalia. P '91, 124 



Osten Sacken, R. Von. New genera and species of North Ameri- 

 can Tipulida? with short palpi, with an attempt at a new classi- 

 fication of the tribe. P '59, 197 



■ Appendix to a paper entitled new genera and species of 



"North American TipulidEe with short palpi," etc. P '60, 15 



On the sex of Cynipidse. P '61, 150 



Descriptions of nine new North American Limnobiaceae. 



P '61, 287 

 Owen, D. D. Remarks on fossil tree from Indiana. P '43, 270 



Note on geology of the Western States. P '43, 272 



On the flowering of the cane in Indiana. P '50, 81 



On fossils from Missouri. P '51, 328 



On human foot-prints in sandstone. P '52, 106 



Notice of a new mineral from California. P '52, 108 



On Fusulina cylindrioa and on Tutenmergel. P '52, 118 



Remarks on geological map of Wisconsin, Iowa and, Minne- 

 sota. P '52, 189, 192 



On a supposed new earth. P '53, 379 



Description of two new minerals and a new earth. J II, 179 



Owen, David D. and Benjamin F. Shumard. Descriptions of 

 fifteen new species of Crinoidea from the Subcarboniferous 

 limestone of Iowa, collected during the U. S. Geological Survey 

 of Iowa, Wisconsin, and Minnesota, in the years 1848-49. 

 J II, 57 



Descriptions of seven new species of Crinoidea from the Sub- 

 carboniferous limestone of Iowa and Illinois. J II, 89 



Owen, Richard. On the genus Durodon. P '46, 15 



Observations on certain fossils from the collection of the 



Academy of Natural Sciences in Philadelphia. P '46, 93 



