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GAALAL. Biwoing. 
I 
PREEPACE 
From various quarters the suggestion has come to me 
to prepare a work on Comparative Psychology, as it 
was known that this subject has engaged my attention 
in no small measure for many years. It would be 
easy enough to collect an additional number of 
anecdotes of animals, and pen some reflections on 
them. It might be possible to gather together some 
accounts of the doings of animals of undoubted 
accuracy and examine these critically, but all this 
has been done, and we must now enter on another 
stage—that of exact, systematic observation and ex- 
periment. There are, however, many methods by 
which so broad a science as Comparative Psychology 
can be advanced, and I hope no word I may write 
may suggest any of those narrow views for which even 
scientific men are sometimes to be held responsible. 
There are many points of view, and it will be well 
to gather observations and opinions from every proper 
source available. 
My own views as to the nature and scope of Com- 
parative Psychology will best be gathered from the 
