410 
POPULAR SCIENCE REVIEW. 
EESEARCHES IN ZOOLOGY.* 
A lthough this is the second edition, it is nevertheless an absolutely 
new book to the great majority of our readers. The first edition was 
published nearly forty years ago, and we think that the well known author 
of the ‘^British Spiders” did well to bring it again before the public. 
It of course is not a book on any distinct subject, but is a collection of very 
valuable papers on subjects of general interest to every true naturalist. It 
is without exception the book of books for the observant country gentle- 
man. What is it about ? Well, we must give some of the contents. First 
are a couple of good papers on birds and their migrations, and there are two 
further articles on the cuckoo. Then follow chapters on the desertion of their 
young by swallows ; on the pied flycatcher ; on the formation of the bill of 
birds ; on the diving of aquatic birds ; on the growth of the salmon ; on the 
means by which animals adhere to the vertical surface of highly-polished 
bodies (this paper is of especial interest, for it shows by exactly similar 
experiments to those recorded in a very recently published paper, the pre- 
cisely same result, that the flies do not adhere by means of atmospheric 
pressure, for on exhausting the air from a glass vessel the flies still continue 
to adhere to the glass) on one of the IchneumonidcB, whose larva is parasitic ; 
on spiders j and experiments and observations on geometric, aeronautic, and 
other spiders. It must be borne in mind that we have only given a portion 
of the contents of this interesting book, which is, of all] the works we have 
lately seen, especially the book for the country naturalist. 
WORKSHOP APPLIANCES.t 
M essrs. Longmans continue to bring out their series of text-books 
of science suited to the intelligent working man, and we think they 
have not yet published a book which is more admirably suited to the class 
to whom they are addressing these volumes, than the present one. It is 
clearly a book which every one who delights in a workshop should possess. 
We do not mean the workman alone ; for there is a very large number of 
country gentlemen, and not a few town ones, who have a certain love for the 
workshop, and who spend a good deal of their time over the lathe and the 
chisel, hammer and plane. To such, as well as to the workman, we 
heartily commend Mr. Shelley’s volume. It is essentially a book which 
ought to be in every workshop ; and we confess that we have learnt some- 
thing from it ourselves, in the chapters on grinding edge-tools, and stones 
* Researches in Zoology;” illustrative of the Structure, Habits, and 
Economy of Animals. By John Black wall, E.L.S. 2nd edition. London: 
Van Voorst, 1873. 
t Workshop Appliances ; ” including Descriptions of the Guaging and 
Measuring Instruments, the Hand Cutting-tools, Lathes, Drilling, Planing 
and other Machine Tools used by Engineers. By C. P. B. Shelley, C.E, 
Professor of Machinery in King’s College. London ; Longmans, 1873. 
