PHYSIOLOGICAL PROPERTIES OF THE GONADS. 

 Castrated Males 



289 



Normal Females 



Spayed Females 



Examining the growth curves one sees that each group as a 

 whole ascends in an unbroken curve from the first weighing to the 

 last one made on the 36oth day. A few animals of each series 

 showed individual temporary loss in weight, but as a group the 

 increases from month to month were continuous. 



