Preface. iii 
of the series. For instance, the classification of the snakes is 
dealt with at some length, as it is important that the students 
should be able to distinguish harmless species from poisonous 
ones, whereas large groups, like that of the Mollusca, are 
passed over in a few words as comparatively unimportant. 
Information of a practical nature, connected with what 
has been done in various parts of the world to mitigate 
damage by insects related to those which are destructive in 
Indian forests, has been added in cases where it seemed likely 
to be useful; but the subject is one which has as yet been 
so little taken up in India that it has been thought safest not 
to attempt to go into it at any length. 
At the end of the manual a brief note has been inserted 
to give the necessary instructions for preparing zoological 
specimens for preservation in the School Museum, where a 
representative series, illustrative of the chief groups of 
Indian forest animals of all kinds, is rapidly accumulating. 
In working over the course with the students it will be 
necessary for the lecturer to link together the various portions 
of the manual by some slight explanation of the meaning of 
the system of classification that is indicated. And at least a 
few words should be added upon the subject of the funda- 
mental theories which form the basis of the science of 
modern Biology. Little or no reference has been made to 
this extensive theme in the manual itself, for it has been 
thought best not to burden a practical work of the kind 
which is intended purely for local teaching, with theoretical 
matter, which is already set forth in the general zoological 
text-books of the day in a manner that would make any 
attempt upon the writer’s part to deal with it afresh appear 
presumptuous. The school library possesses a copy of Sedg- 
wick’s edition of Claus’ Text-book of Zoology, the introduc- 
tion to which comprises an admirable treatise upon the sub- 
ject, and this work is recommended for the use of students 
who desire further guidance. . 
