FROM THE "SPECTATOR" 53 



By a little training he was taught to place 

 the coins, after he had got the biscuits, upon 

 the top of a small box fixed on the wall, and 

 they were dropped for him through a slot. 

 He never objected to part with them in this 

 way, and having received the quid pro quo, 

 he gave complete evidence of his apprecia- 

 tion of the honourable understanding which 

 is so absolutely necessary for all commercial 

 transactions. 



An authenticated case like this is of ex- 

 treme value, for just as the elementary stages 

 of any science or discovery are the most 

 difficult and the slowest in accomplishment, 

 so are the primary stages of all mental 

 processes. To find the preliminary steps 

 of the evolution of mathematics and com- 

 merce in a dog is therefore a very important 

 observation, and everything bearing on 

 these early phases of intellect should be 

 carefully recorded. LAWSON TAIT. 



{Feb. 10, 1877.] 



THE Spectator is always so kind to animals 

 that I venture to send you the following 



