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ANIMAL INTELLIGENCE. 
He showed the same deliberate design of deceiving on otheT 
occasions. Having hurt his foot he became lame for a time, 
during which he received more pity and attention than usual. 
For months after he had recovered, whenever he was harshly 
spoken to, he commenced hobbling about the room as if lame 
and suffering pain from his foot. He only gave up the practice 
when he gradually perceived that it was unsuccessful. 
The following instance, which I observed myself, I 
regard as more remarkable. It has already been pub- 
lished in 6 Nature 5 (vol. xii., p. 66), from which I quote it : 
The terrier used to be very fond of catching flies upon the 
window-panes, and if ridicuied when unsuccessful was evidently 
much annoyed. On one occasion, in order to see what he 
would do, I purposely laughed immoderately every time he 
failed. It so happened that he did so several times in succes- 
sion — partly, I believe, in consequence of my laughing— and 
eventually he became so distressed that he positively pretended 
to catch the fly, going through all the appropriate actions with 
his lips and tongue, and afterwards rubbing the ground with 
his neck as if to kill the victim : he then looked up at me with 
a triumphant air of success. So well was the whole process 
simulated that I should have been quite deceived, had I not 
seen that the fly was still upon the window. Accordingly I 
drew his attention to this fact, as well as to the absence of any- 
thing upon the floor ; and when he saw that his hypocrisy had 
been detected he slunk away under some furniture, evidently 
very much ashamed of himself. 
This allusion to the marked effects of ridicule upon a 
dog leads to a consideration of the next emotion with 
which I feel certain that some dogs are to be accredited. 
I mean the emotion of the ludicrous. This same terrier 
used, when in good humour, to perform several tricks, 
which I know to have been self-taught, and which clearly 
had the object of exciting laughter. For instance, 
while lying on his side and violently grinning, he would 
hold one leg in his mouth. Under such circumstances, 
nothing pleased him so much as having his joke duly 
appreciated, while if no notice was taken of him he 
would become sulky. On the other hand, nothing dis- 
pleased him so much as being laughed at when he did 
not intend to be ridiculous, as could not be more con 
