DISCOVERY OF THE GREAT LAKE TROUT 689 



Besides the remains of fish, there have been found in the Menomonie clay 

 beds the remains of various mammals such as the elephant, mastodon, rein- 

 deer, caribou; 1 the bones of other mammals, the leg bone of a bird, and 

 also fragments of wood identified as spruce. 



The fossil remains of the land mammals and of forest trees found in the 

 clays are only in fragmentary pieces, indicating the fact that these were carried 

 some distance by streams, or currents along the lake shore, and dropped into 

 the bed of the old lake. 



The remains of the fish, on the other hand, are fairly complete specimens, 

 aDd seem clearly to indicate that these fish lived in the lake in which the clays 

 were deposited. 



1 Rangifer, probably an extinct species, is represented by both male and female 

 antlers, the latter identified by Dr. O. P. Hay. 



