64 ANNALS OF SCOTTISH NATURAL HISTORY 



larva, pupa, and imago of the typical forms. In addition is given a 

 carefully prepared account of the habitat and distribution of each 

 species, with its time of appearance ; while at the end of each chapter 

 we find a most useful table showing at a glance the months in which 

 the collector should meet with each of the four stages of any species, 

 its reputed food-plants, and its place of pupation. This is perhaps 

 one of the best features of the book, and should save the youthful 

 enthusiast a great deal of trouble in searching for the facts he requires 

 concerning the life-history of any of his favourite creatures. At the 

 end of the volume is a series of nine photographic plates (the first is 

 used as a frontispiece) showing the images of all the species, while 

 in the body of the work is a tenth plate showing the structure and 

 mode of attachment of butterfly pupae. 



GILL'S PRACTICAL OBJECT LESSON SERIES. PART II. INSECTS 

 AND SPIDERS. By J. W. Tutt, F.E.S. (London : George Gill and 

 Sons, 1896.) 



This little book consists of a series of fifteen lessons supplying, 

 for the use of teachers, an outline of the principal points in the 

 anatomy and physiology of insects, and upon the whole they have 

 been carefully compiled. A very awkward blunder has been made, 

 however, in Lesson V., where in the text the author is talking about 

 locusts (family Acridiida). He states correctly in two places (pp. 47 

 and 49) that the female is not provided with an ovipositor, and then 

 immediately refers to Plate VI. Fig. i, which is a representation of 

 one of the Locustidx^ calling the long ovipositor there shown a digging 

 organ ! This is very misleading, and when we find a statement on 

 p. 84 that flies have two ocelli we cannot help feeling that the book 

 must have been written in a hurry. In the first part of Lesson X. 

 it might have saved confusion if it had been stated that the House 

 Fly was the creature described, as many of the statements made 

 cannot otherwise be accepted. It is a pity that such a useful little 

 book is marred by these inaccuracies, but a second edition may afford 

 an opportunity to correct them. 



RULES FOR REGULATING NOMENCLATURE IN ENTOMOLOGICAL 



WORK. Compiled by Lord Walsingham and John Hartley Durrant. 

 (London: Longmans, Green, and Co., 1896.) 



This is a set of rules, fifty-one in number, prepared with a view 

 to securing a strict application to the law of priority, and entomologists 

 will be grateful to the authors for preparing such a guide. Some 

 uniform method of dealing with the vexed question of nomenclature 

 is much needed, and the present contribution is full of useful 

 suggestions. Prepared by such authorities, and with so much care, 

 its value is manifest. 



