Organic Connection Between Physical and Psychical 271 



"have led me to believe that it rarely returns to eat what it 

 has thus cached, unless driven to do so by hunger resulting 

 from adverse fortunes of the chase." 17 



Nor is there much if any question that something of the 

 same sort occurs among mammals which have the food stor- 

 ing habit. E. T. Seton quotes the following from Dr. John 

 Wright concerning the big eastern chipmunk (Tamias stria- 

 tus griseus) : "It is a most provident little creature, con- 

 tinuing to add to its winter store, if food is abundant, until 

 driven in by the severity of the frost. Indeed, it seems not 

 to know when it has enough, if we may judge by the surplus 

 left in the spring, being sometimes a peck of corn or nuts 

 for a single squirrel." There are many other statements 

 by the best authorities, especially concerning numerous spe- 

 cies of mice, which strongly suggest a like superabundance 

 of storing activities. But for the rest I will mention a case 

 that has come to my own notice. 



I am indebted to Mr. Frank Stephens for information 

 about and the opportunity to witness to some extent for 

 myself the operations of the storing instinct and feeding 

 habits of the Antelope Ground-Squirrel (Ammosperinophi- 

 lus leucurus). This chipmunk-like little squirrel proves to 

 be so readily domesticable that it becomes almost as familiar 

 a household member, at least for Mr. Stephens' household, 

 as a domestic cat. Although an account of the habits of the 

 single individual in Mr. Stephens' possession can not yet be 

 told fully by a long ways, a few points of much interest 

 for the present discussion are positive enough. 



In the first place the genuinely instinctive character of 

 the storing habit is established by the fact that although the 

 specimen under observation was taken soon after birth, and 

 has lived all its life in complete isolation from parents and 

 all its kind and has been furnished artificially with an 

 abundance of food, its storing operations are carried on 

 constantly and almost as perfectly, so far as one can judge. 



