PREPACE 
My book on “Animal Life and Intelligence” .being out 
of print, I undertook to revise it for a new Edition. As 
the work of revision proceeded, however, it appeared that 
the amended treatment would not fall conveniently under the 
previous scheme of arrangement. I therefore decided to - 
write a new book under the title of ‘Animal Behaviour.” 
A few passages from the older work have been introduced, ~ 
and some of the observations and conclusions already pub- 
lished in greater detail in “ Habit and Instinct” have been 
summarized. But it will be found that these occupy a 
relatively small space in the following pages. 
c. L. M. 
University CoLLecr, Brisrox, 
October lst, 1900. 
