180 THE MICROSCOPICAL NEWS. 
OUR BOOK SHEE: 
MICROPHOTOGRAPHY. Malley. London: Lewis, 136, Gower 
Street. 1883. 
Under this title the author publishes a treatise of instruction in 
photo-micrography. It should be known by this time that there 
exists two kinds of photography with the microscope—the one in 
which large objects are reduced to microscopic proportions, such 
as the exquisite productions of Mr. J. B. Dancer, the other wherein 
small objects are photographed upon an extremely magnified scale ; 
the former is called micro-photography, the latter photo-micro- 
graphy, and it is well there should be this distinction. 
The first two chapters, of which one is introductory, though of 
an elementary nature, may be read with profit even by advanced 
photographers, as the matter is woven up with many hints showing 
the practical character of the author’s experience. With the first 
two paragraphs on page 25 we cannot agree. The author in- 
structs his reader to ‘‘avoid purchasing instruments adorned with 
mechanical arrangements for performing the various movements.” 
Our advice is exactly the reverse of this ; in no operation have we 
found the mechanical stage so useful as with photo-micrography, 
and we cannot by any means concur with the statement that “the 
various additions generally made to the first-class instruments of the 
present day are an insult to the skilled microscopist, and a means of 
perpetuating clumsy manipulations.” After all, if a microscope were 
built from the author’s specifications on p. 25, e¢ seg., and were 
the operator provided with all the apparatus mentioned, he would 
by no means find himself possessed of a second-class instrument, 
nor be short of appliances. 
The mounting and preparation of objects intended for photo- 
micrography will be found a very useful chapter, and special atten- 
tion may be called to the last paragraph on p. 72. 
The chapter on the arrangement of the apparatus is the most 
valuable in the whole work, and will alone repay the purchaser for 
his outlay ; the management of the light, on page 113, specially 
deserves attention, 
We hope there is a sufficient demand for a work of this kind to 
call forth a new edition at an early date, so that the author may 
have an opportunity of correcting the numerous errata which are 
to be found in the volume before us. We hope also that he will 
endeavour to provide his readers with better illustrations of the 
photo-micrographic art in a future edition. The frontispiece hardly 
gives an idea of the manipulative skill which the author must have 
acquired during his ten years’ experience, and those of us who are 
