34 THE AMERICAN BISONS. 



states of preservation, from those that had wholly lost their animal matter to 

 those that were fresh and unchanged. In some cases the horny coverings 

 still adhered to the horn-cores, and in other cases were found detached but 

 still in a good state of preservation. 



3. Valley of the Yukon and its Tributaries. — Mr. "W. H. Dall reports (verb, 

 com.) the occurrence of the remains of the extinct bison throughout a large 

 part of the valley of the Yukon River. Alaska, and along several of its tribu- 

 taries. These remains, consisting of horn-cores, crania, lower jaws, and other 

 parts, he informs me are found on or near the surface of the ground, with, 

 and in the same condition as. the remains of Elephas and an extinct species 

 of Equus. The collection of the National Museum at Washington contains a 

 horn-core with part of the frontal bone attached, brought home by Mr. Dall, 

 and a metacarpal collected by Mr. Lockhart. A skull of this species, belong- 

 ing to the California Academy of Sciences, and kindly loaned me for exam- 

 ination, is labelled "St. Michael's, Alaska," but may have been brought Prom 

 some point on the Yukon. It thus appears that the remains of the extinct 

 bison are found throughout a considerable portion of the Territory of Alaska. 



4. California. — In California the remains of the smaller extinct bison ap- 

 pear to be of rather frequent occurrence, having been already found at sev- 

 eral different localities, generally associated with the remains of Mastodon 

 Elephas, Tapirvs, and Equus. Dr. Leidy has described a skull from Santa 

 Clara County; Professor Whitney mentions the occurrence of its remains in 

 Tuolumne County, and Dr. J. G. Cooper has sent a description of a skull 

 found by him in Alameda County, where Dr. L. G. Yates has recently dis- 

 covered another skull, from which locality I have also seen other fragments. 



?5. Oregon. — A phalangeal bone described bj Dr. Perkins is said to have 

 been found twenty feet below the surface, on tin' •• Wolhamniet or Multono- 

 mah River," a tributary of the Columbia, associated with the remains of 

 Elephas. The specimen most likely is referable to the present species. 



Prom the foregoing it appears that tin' remains of this species have been 

 found rather frequently in California and Alaska, and they probably exist at 



intermediate points. The single specimen li Big-bone kick, if really 



identical with the western type, a- there Beems to lie -nod reason for believ- 

 ing, extends its range to the valley of the Ohio, and then- is hence reason to 

 suppose, aside from the occurrence in Georgia of specimens possiblj refer- 

 able to it. that it i u . i \ have ranged eastward to the Atlantic coast. Every- 

 where it- remains occur in association with those of tin- lamer extinct 



