12 SMITHSONIAN INSTITUTION 



through the kind ofifices of Dr. J. C. F. Siegfriedt, a resident of Bear 

 Creek, who was also generous of his time and knowledge in assisting 

 in my investigations. Examination of the Eagle mine showed the 

 occurrence of the fossil remains to be in a thin stratum that immediately 

 overlies the coal in the roof of certain parts of the mine. In this 

 layer has been found a considerable variety of minute mammalian 

 fossils in addition to the scattered bones of Rhynchocephalian reptiles, 

 crocodiles, turtles, and fish. Limited time did not permit me to make 

 a collection of these fossils on the spot, but 400 or more pounds of 

 the " pay dirt " was boxed and shipped to Washington where it can 

 be carefully gone over for its minute fossil content. Arrangements 

 were also perfected with the mine foreman whereby additional fossil- 

 bearing rock may be obtained should more be desired. Paleocene mam- 

 mal remains are among the rarest of fossil specimens, so that the 

 discovery of this new locality in what is probably a different geological 

 horizon from those previously found in Montana is of much scientific 

 interest. 



On the return journey from the field I took the opportunity of 

 examining the paleontological collections of the University of Utah, 

 Salt Lake City ; the University of Wyoming, Laramie ; the Colorado 

 Museum of Natural History, Denver ; the University of Kansas, 

 Lawrence ; and the Field Museum of Natural History, Chicago. 



