NOTICES OF BOOKS. 187 



not wish for a more accurate or easy method of obtaining reli- 

 able photomicrographs than those described by the author in 

 Part VII, who declares that by this method he has obtained his 

 best results. Certainly the plates 3-8 which reproduce some of 

 the author's work demonstrate the beauty of the results. There 

 is a table giving complete details regarding the taking of the 

 negatives for these illustrations. There is also included a chapter 

 on special methods of illumination, a list of photographic neces- 

 saries and a number of formulae for solutions, etc. Altogether 

 the book may be cordially recommended to the practical worker 

 with the microscope, and even the experienced worker in photo- 

 micrography may find very useful hints for his guidance. 



Aids to Bacteriology. By C. G. Moor, M.A., and William 

 Partridge, viii -f- 278 pages. 6| x 4 inches. Third edi- 

 tion. (Bailliere, Tindall & Cox, London. 1916. Price, 

 cloth, 3^. 6d. net ; paper, 3*. net.) 



This well-known vade-mecum of the bacteriologist has now 

 reached its third edition and nearly all parts of the book have 

 been revised and enlarged. The amount of information con- 

 tained in the compass of this small book is quite extraordinary, 

 covering as it does the whole range of bacteriology, using that 

 term in its widest sense. After an introductory chapter dealing 

 with the classification and biology of the bacteria, we have three 

 chapters dealing respectively with bacteriological apparatus, the 

 preparation and use of nutrient media and the microscopic 

 examination of bacteria. All the principal pathogenic bacteria 

 are dealt with in chapters V-XIII, and these are followed by 

 chapters dealing with the blastomycetes (yeasts), hyphomycetes 

 (moulds), and the principal pathogenic protozoa. The wide 

 scope of the book is indicated by the inclusion of chapters deal- 

 ing with the special bacteriology of water, milk and other foods, 

 air, soil and sewage, and the bacterial diseases of plants. A full 

 index is provided. 



We may congratulate the authors on the success they have 

 achieved in compiling this useful and comprehensive little book. 



JouRN. Q. M. C, Series II.— No. 79. 14- 



