INTELLIGENCE OF ANIMALS. 361 



other as it was mentioned by its name. In 

 beginning the alphabet he put two most dissim- 

 ilar letters side by side to begin with, such as an O 

 and an I, avoiding the confusion of similar ones, 

 such as O and Q or B and R. Gradually the 

 dog became observant enough to discriminate 

 between letters in which the difference was not 

 so marked. M. du Rouil said he had found the 

 greatest difficulty in teaching Blanche to distin- 

 guish between the knaves and kings in playing- 

 cards, but that she learned the aces very 

 promptly. When he was asked what, after his 

 ten years' experience, was his opinion of the 

 intelligence of dogs, he answered, with great 

 emphasis, " that it is infinite." 



In subsequent pages I shall set forth my 

 method of educating both dogs and horses to 

 perform a variety of feats, which will be de- 

 scribed, and from the ideas thus imparted the 

 reader may multiply the number of tricks to 

 any desired amount. 



