469 



Elementary Piioto-Micrograpiiy. By Walter liagshaw, 

 7 X 4| in., G8 pages, 11 figures in the text, 12 on plates. 

 London, 1902 : IlifFe ct Sons. Price Is. net. 



In the preface to this little work the author clearly states that 

 it is not written for experts, but for beginners only, and he 

 certainly succeeds in showing that excellent results may be 

 obtained by means of very simple ap))aratus. Among other 

 things of this kind he gives directions for the construction of a 

 plain, though efficient, Imse-board on which to mount the camera 

 and microscope. 



It is, however, impossible to treat the subject of this book in an 

 adequate manner within the compass of sixty-eight pages, twenty- 

 six of which are devoted to the considerati(jn of purely photogi-aphic 

 matters, such as developers, printing processes, etc., and necessarily 

 many little details of mani[)ulation which would be found helpful 

 even by beginners are left out. The use of the substage (tondenseiy 

 for instance, is only casually alluded to. Still, so far as he does go, 

 the author treats his subject in an interesting manner ; and as the 

 plates are excellently leproduced, Mr. Bagshaw's little book may 

 excite an interest in some of his readers, and if it leads them on 

 to the serious study of more advanced works, it will have fulfil](!(l 

 its purpose. A. A. 



The Natural History of Aquatic Insects. By Prof. I., (j. 

 Miall, F.Pt.S. Second Edition ; 7x4^ in., xi -|- ;J95 pages, 

 110 figures in the text. London, 1903: Macmillan .fe Co. 

 Price 35. Gd. 



It seems somewhat surprising that of the many who devote 

 themselves to the study of various kinds of insects such a small 

 proportion should pay attention to the aquatic forms. Until th<; 

 appearance of the first edition of this- book, eight years ago, 

 there was some excuse for this state of affairs, as there was no 

 handy book dealing in anything appi-oaching an adequate manner 

 with these creatures. But with Prof. Miall as a guide there 

 should now be no difficulty in getting a good grounding in the 

 subject, and it is much to be hoped that the issue of this second 

 and cheaper edition will give an additional fillip to the interest 

 taken in aquatic entomology. The book e-an certainly be 



JouRN. Q. M. C, Skkies 11. -No. 52. 31 



