131 



MineriU and geological specimens — Continued. 



400 

 401 

 402 

 403 

 404 

 405 

 406 

 407 

 408 

 409 

 410 

 411 

 412 

 413 

 414 

 415 

 416 

 417 

 418 

 419 

 420 

 421 

 422 

 423 



Whitish cherty limestone. 

 White foliated limestone . 



do 



Niobrara river 



White tufaceous marl, containing fresh water shells 



Silicified wood 



do 



Siliceous sinter 



Carbonate of lime 



Ferruginous conglomerate 



Micaceous granite 



Hornblendic rock 



Limestone, with corals 



do with Spirifer 



do with Orihoeeratite 



do with Syringopora : 



Chalcedony 



Silicified wood 



Limestone, with red chert 



Concretions from yellow marl 



Siliceous sinter from springs 



Sand from sand hills 



Very fine, gray, sand from sand dune 



Prismatic iron ore 



Efflorescence on soil 



Loup Fork . .. 



Running Water . . . 

 do 



Sage creek 



Bear Peak 



Yellowstone river . 



do 



do 



do 



do 



do 



do----.... 



do 



do 



do 



Big Sioux 



Black Hills 



do 



Powder river 



Mouth Bigh Horn. 



Cannon Ball river. 



Dr. Newbery rendered me valuable assistance in making out the preceding catalogue. 



