The Pocket Gopher. 



investigations conducted in the spring of 1907 and 

 1908: 



119 



spring of 



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 

 transparent skin of a delicate pinky-white. They are blind, 

 their ears are sealed, and in most respects, therefore, they are 

 perfectly helpless. 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 



