173 



their existence in water, whether ponds, ditches, rivers, lakes, or 

 the sea, with their structure, metamorphoses, and general life- 

 history. Many of these, in one or other of their stages, are 

 favourite microscopic objects, and the very complete account which 

 Prof. Miall has given of the various aquatic beetles, flies, caddis- 

 worms, Ephemeridaa, stone-flies, dragon-flies, pond-skaters, water- 

 boatmen, and other insects should render it extremely useful to all 

 who take an interest in this fascinating branch of natural history. 

 Besides the descriptions in the text there are pretty full references 

 to special works, which undoubtedly increase its value. The illustra- 

 tions are generally good, many of them being drawn by our former 

 member, Mr. A. Hammond, F.L.S., whose skill as a draughtsman 

 is well known. The book may confidently be recommended. 



Texte et Tables de la Collection des Diatomees du Monde 

 Entier. Par MM. Tempere et H. Peragallo, Paris. Price 

 18 francs, or 14s. post free. 



This work should certainly be of use to collectors of Diatoms. 

 It is an analysis of the principal species and varieties contained in 

 625 gatherings and deposits obtained from all parts of the world, 

 and the relative abundance of the various forms in each is indicated 

 by different styles of type, which is a very convenient arrangement. 

 There is also an alphabetical list of localities showing the nature 

 of the Diatomaceaa in each, whether recent or fossil, freshwater, 

 brackish or marine, and finally an index of species, with one to 

 four references to the places where they will most frequently be 

 met with, leaded figures indicating that the particular form is 

 almost unmixed or preponderates, and italics that it is rare. It 

 may be useful to know that either the cleaned material or mounted 

 preparations as well as the book can be obtained of Monsieur 

 Tempere, 168, Rue Saint- Antoine, Paris. 



Introduction to the Study of Zoology. B. Lindsay. London : 

 Swan, Sonnenschein & Co. Price 6s. 



This little book is chiefly intended for those who have taken up 

 the study of Zoology for the first time in later life and who require 

 an elementary and at the same time sufficiently reliable guide to 

 put them on the right track. " The commercial man, the clerk, 

 and the well-educated artisan help to make up the class of students 

 I refer to — students whose enthusiasm for knowledge is such as to 



Journ. Q. M. C, Series II., No. 37. 12 



