REVIEWS. 47 



dering its accessibility from London and the beauty of its 

 scenery, it does seem extraordinary that more workers have no 

 appeared upon the scene. This can only be accounted for by the 

 custom obtaining among the bulk of collectors of working in one 

 groove, visiting the same localities season after season, instead 

 of striking out for themselves new hunting-grounds, unless 

 " personally conducted." This list will, we hope, draw attention 

 to the eastern half of Sussex, and induce further exploration. — 

 J. T. C. 



The Cockroach : an Introduction to the Study of Insects. By 

 Prof. L. C. MiALL and Alfred Denny. 1886. London: 

 Lovell Reeve & Co. Leeds : Kichard Jackson. 



This work is the third of a series of ' Studies in Comparative 

 Anatomy ' by Professor Miall, or jointly by him and collaborators, 

 the two previous ones being upon the ' Skull of the Crocodile ' 

 and the 'Anatomy of the Indian Elephant.' No doubt these 

 books will find ready sale among a class of readers who like to 

 obtain their knowledge in as simple form as possible. The one 

 just issued upon the Cockroach treats in popular language of the 

 structure and life-history of Periplaneta orientaUs and its alHes. 

 The volume is liberally illustrated by drawings, some one hundred 

 and twenty-five in number. 



The type followed is Professor Huxley's well-known text- 

 book for biologists, ' The Crayfish ' ; but although that type is 

 fairly imitated, ' The Cockroach ' falls short of the model in 

 originality. The authors confess in their preface that some of 

 the figures have already appeared in five articles upon the 

 subject, which appeared in ' Science Gossip ' a couple of years 

 previously. We think we may take it for granted that some of 

 the substance of this work also appeared at the same time, for 

 its whole tone is somewhat gossipy, where collation has not been 

 resorted to. Thus, much of the contents of the work under notice 

 has already appeared elsewhere, and in some instances long ago. 

 There can be no possible objection to this style of book-making, 

 for it must greatly tend to a popularity of the study of the 

 structure of various animals, though we doubt if it will make the 

 authors' friends, the Cockroaches, more popular. 



The work is divided into eleven chapters and an appendix. 

 The chapters are — I., upon "Writings on Insect Anatomy"; 



