1G8 THE ENTOMOLOGIST. 



ceedings shows that much is done at the meetings, not only by many 

 iuteresting exhibits, but by short papers and comments, to make the 

 work of members available for general instruction. Amongst these, 

 Mr. Lucas's demonstration of dragonflies, and especially of their early 

 stages, and Mr. Clark's lantern slides of microscopic preparations, may 

 be referred to as instances of valuable original material. It may 

 further be mentioned tbat the illustrations on p. 95 are process repro- 

 ductions of enlarged photographs by the latter member. 



Two papers are reported in full ; one on " The Scientific Aspects 

 of Entomology," by Mr. Tutt, and one entitled "Lazy Days by the 

 Sea," by Mr. Adkin. Under the latter unpretentious title, Mr. Adkin 

 gives some interesting notes on insect life at Eastbourne, especially 

 particulars of the habits of Bryophiia perla and B. muralis as affecting 

 walls in Eastbourne and its vicinity. Mr. Tutt's paper is supplemented 

 by his presidential address. The latter, amongst other matters, deals 

 in a thoughtful way with some present aspects of questions of natural 

 selection. The most interesting perhaps is a discussion founded on a 

 passage in Bateson's work, in which that author says that " the 

 differences between species are specific, and are differences of kind, 

 forming a discontinuous series ; whilst the diversities of environment 

 to which they are subject are, on the whole, differences of degree, and 

 form a continuous series." After noticing the entire begging of the 

 question involved in the first half of this passage, Mr. Tutt addresses 

 himself to pointing out that environment varies in precisely the same 

 way. He devotes some space, with copious instances, to show that 

 what we unthinkingly, at first view, regard as identical environments 

 of two different organisms, because forsooth they occupy the same 

 place, are, for these two organisms, owing to a difference of habit, as 

 different environments as if they occupied opposite sides of the planet. 

 A change of food-plant would be a discontinuous change, though all 

 else remained identical ; a different season of emergence and many 

 other such differences make the same place and climate a very different 

 environment to its different inhabitants. We have not space to follow 

 up this demonstration, and must refer our readers to the address itself, 

 whilst congratulating the Society on the energy and vitality it displays 

 in this volume. 



The Coleoptera of Suffolk. By Claude Mokley, F.E.S. Pp. i-xiv, 

 1-113. Plymouth : James H. Keys. 1899. 



Coleopterists, especially those residing in Suffolk, will be grateful 

 to Mr. Morley for producing this county list. It appears to have been 

 prepared with care, and the compiler has not only given exact localities, 

 but in very many cases has added useful notes concerning habits, &c, 

 of the species. One thousand seven hundred and sixty-three species are 

 referred to ; this is rather more than half the number known to occur 

 in Britain. In the introductory pages there are short notices of some 

 Suffolk coleopterists, and remarks on the geology and physical features 

 of the county. There is also a map of Suffolk, on which the "dis- 

 tricts " mentioned in the list are indicated. 



