114 Kansas Academy of Science. 



It will be seen that of the ninety-five females examined, some 

 showed signs of pregnancy in the latter part of January, and all 

 but two or three had given birth to their young before the first 

 week in May. The record for some parts of the season is not so 

 complete, however, as it should be. It should include data for the 

 remainder of January and for the first half of March. 



The young are described as being entirely hairless, with trans- 

 parent skin of a delicate pinky- white. They are blind, their ears 

 are sealed, and in most respects, therefore, they are perfectly help- 

 less. In the fall one may still distinguish the younger specimens 

 by their smaller size, but most of them seem to be fully grown by 

 the advent of cold weather. Long before this time they have ex- 

 cavated burrows of their own and laid up some stores for the winter. 



