MR. CHUPES AND MISS JENNY 



were all assembled. It has several times 

 occurred to me that the birds may have 

 connected that period of terror with the bit 

 of bark. At any rate, from that time on, I 

 had only to place a piece where there was 

 property to protect, and no sign of " no 

 trespassing" was ever more religiously 

 observed. 



A still more remarkable case of their rec- 

 ognition of cause and effect, and one in 

 which there is no room for doubt, came to 

 my notice shortly after we began to use the 

 electric light. 



The birds always took a great interest in 

 my movements, particularly Chupes, who 

 never allowed me to open a bureau drawer 

 or a box without insisting upon investigat- 

 ing its contents. The turning on and off of 

 the electric light never failed to attract their 

 attention. They seemed to know that light 

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