14 INTRODUCTION 



ponent of the belief in the horse's intelligence as he ever 

 had been. 



And finally, after I could no longer keep from him the 

 results of our investigation, I received a letter from him 

 in which he forbade further experimentation with the 

 horse. The purpose of our inquiries, he said, had been to 

 corroborate his theories. On account of his withdrawal 

 of the horse a few experimental series unfortunately 

 could not be completed, but happily the major portion of 

 our task had been accomplished. 



