392 THE ZOOLOGIST. 
for in the pursuit of Entomology is a knowledge of how to combat 
those insects which cause incalculable damage to the agri- 
culturist especially, and to mankind generally.” 
It is to be hoped that these remarks will be taken to heart by 
young collectors, and that the useful hints which are given for 
collecting, rearing, setting, and preserving insects, all of which 
have borne the test of actual experience, will in due course 
be turned to good account by those for whose benefit they have 
been detailed. 
A Zoological Atlas (including Comparative Anatomy), with practical 
directions and explanatory text. For the use of Students. 
231 coloured figures and diagrams. By D. M‘Aupre, 
F.C.8., Lecturer on Biology and Natural History, Edin- 
burgh. (Vertebrata). Edinburgh and London: W. & A. K. 
Johnston. 1881. 
In most recent works on Biology the authors very properly 
insist on the necessity for practical work in order to thoroughly © 
understand the subjects, but no attempt hitherto seems to 
have been made to depict what to see as well as describe how to 
to see it. 
In the Atlas before us a series of forms, gradually increasing 
in complexity, are examined externally and internally, and the 
results of that examination carefully drawn, so that by a previous 
study of a plate of any given species the specimen itself is easily 
understood. The species selected in the present case are the 
Skate, Cod, Salamander, Tortoise, Pigeon, and Rabbit, all easily 
procurable forms, and of a convenient size for dissection. We 
observe that the names of the various parts are placed on the 
drawing, a very commendable feature ; thus the attention is not 
distracted by referring to an index, and there is no chance of a 
mistaken reference; while the accompanying descriptions in 
every case very properly face the plates. These seem to have 
been prepared with great care and accuracy, and, as an aid to 
teachers, will be found extremely useful. Indeed, with such an 
Atlas before him, and a good text-book, the student might almost 
dispense with the services of a professor. 
