612 
REVIEW. 
Cobbold's careful and exhaustive list of books, essays, lec¬ 
tures, and papers, on every, even the most minute sections 
of his subject, will be simply invaluable. They range over 
not only our own language, but include everything that has 
been written on this department of science in every language 
of the known world. 
“ The practical value of such a book as this cannot be too 
highly estimated ; it suggests fields for further investigation 
as freely as it supplies material for every-day application. 
To breeders of every kind of domestic animal it is full of 
valuable hints, and we shall endeavour to get the learned 
author to favour us in a more familiar form with some of 
the more prominent lessons his work teaches as to the 
treatment of the diseases common to cattle, horses, dogs, 
and poultry. Certainly no man living is more competent to 
do so.” 
Note by Dr. Cobbold .—In acknowledging the kind and 
flattering terms in which the reviewer has spoken of my 
efforts, I wish to say that, as I had already employed the 
title c Worms' to a small professional work—embodying the 
lectures on helminthology which ^delivered at the Middlesex 
Hospital many years back—that fact in itself afforded good 
ground for not repeating the title. Apart from this cir¬ 
cumstance, however, the term “ worms” would, I think, 
have been eminently unsuitable for a treatise embracing 
some account of numerous parasitic creatures which have 
not the remotest structural relation to <e worms” or Vermes , 
properly so called. On the other hand, the fact that I had 
already used the term for the title of a book dealing almost 
exclusively with creatures coming fairly within the class 
Vermes shows that, where I could possibly meet the require¬ 
ments of the general and professional reader, I was quite 
willing to make the concession. The reviewer says that my 
work is “ popular in its treatment.” I am much obliged to 
him, but I certainly did not design that it should be so, 
except in so far that it should plainly serve as a guide to 
more substantial and pretentious works and monographs. 
To be candid, I am entirely dissatisfied with the book; yet 
I do not see how (within the limits of time at my command) 
I could have avoided some of the many errors and defects 
which it contains. Through sheer haste and the necessity 
of occasionally quoting authorities second-hand almost all 
of the errors are fairly attributable. The science of hel¬ 
minthology makes such strides that to have spent more than 
two years over the manuscript of the book would have ren¬ 
dered the earlier part of it out of date. To object to the 
