68 Analyses of Books. [January 
5. Is entirely devoted to Photography. The author has here 
been assisted by Dr. Maddox and Dr. Clifford Mercer. The in- 
structions given are of the fullest kind, and include some of the 
most recent improvements. 
6. Is particularly Dr. Beale’s own, and treats upon original 
research, especially with the extremely high powers which, com- 
bined with the author’s manipulative skill, have contributed so 
much to the determination of the minute details of nerve 
structure. The special mode of conducting the operations is 
given at great length, and the interpretation of the appearances 
presented fully discussed : here the whole resources of the mi- 
croscope, aided by chemistry, are brought into play, and the 
author’s deductions from his observations concerning structure, 
formation, growth of tissues, and vitality carefully considered. 
It is in this portion of the book that the particularly beautiful 
illustrations before mentioned abound. 
7. On the construction of ObjeCt Glasses, which appears for 
the first time in the present edition, explains much that has 
hitherto been a mystery to microscopists. Little respecting 
these marvellous optical combinations has till now passed beyond 
the limits of the workshop ; but Mr. F. H. Wenham, F.R.M.S., 
has kindly placed his published papers and the results of his 
experience at Dr. Beale’s disposal, and given most valuable 
information as to the manner of working lenses and prisms, with 
suitable formulas for their construction. Mr. James Swift has 
also furnished some manipulative details. 
The work concludes with tables for practising the use of the 
microscope, commencing with very simple operations, and gra- 
dually advancing to those of considerable difficulty: the whole 
are referred to the pages of the book where the description may 
be found, and also to the plates. This is followed by a list of 
works and papers on the microscope and matters relating to it, 
and an Appendix containing an account of apparatus which has 
appeared during the progress of the work. 
Aitnals of Chemical Medicine, including the Application of Che- 
mistry to Physiology , Pathology , &*c. Vol. I. Edited by 
J. L. W. Thudichum, M.D. London : Longmans. 1879. 
This is the first volume of a new scientific periodical which 
proposes to treat entirely of Chemistry applied to Medicine, and 
will contain papers on original researches to be carried out in 
physiological, chemical, and pharmaceutical laboratories in 
Great Britain and elsewhere. The oftentimes astounding igno- 
rance shown by medical men on chemical subjects is frequently 
excused on the ground that the latest researches in Chemical 
