THE CANADIAN ENTOMOLOGIST. 15 



insects draw so largely tipon their pockets, and devastate their fields and 

 gardens if not looked after and repressed? That they do abstract annually 

 enormous sums from the wealth of the country, our editors show us plainly 

 in their opening article ; they state, and we do not suppose they are far wrong, 

 that the Uplted States lose $300,000,000 per annum by the depredations of 

 noxious insects! Their object in issuing this new periodical is to shew the 

 people how to save a small proportion, at any rate, of this vast sum, and teach 

 them how to fight with the best prospect of success their tiny but countless 

 foes. The oflScial position of these gentlemen, as well as their various publish- 

 ed writings, are a sufficient guarantee for the character and usefulness of their 

 journal ; the hearty cooperation of the public is all that is needed for its 

 success. The number before us consists of twenty large octavo pages; it is 

 written in a clear and lively style, and is illustrated by nine excellent wood- 

 cuts. It is to be published once a month, and will be profusely illustrated 

 by original drawings from the pen of Mr. Riley, and at least one colored 

 lithographic plate will be given with each volume. For the convenience of 

 subscribers in Canada we have consented to act as agent for this Province ; 

 on receipt of one dollar we shall furnish it, y*/*ee of Canadian and American 

 postage, for one year — the difference of exchange covering the postage on 

 both sides of the line. The title, American Entomologist, should be particu- 

 larly mentioned to prevent any confusion with our own publication. 



Books received: — On the Development of a Dragon Fly (^Diplax), and 

 On the Structure of the Ovipositor and Homologous Parts in the Male 

 Insect. By A. S. Packard, jun., M.D. From the Pro. Soc. Nat. Hist. 

 Boston, 1868. 

 The author will please accept our thanks for the copy of these valuable 



papers that he has kindly sent us. 



The Maine Farmer. Augusta, Me., Sept. 3, 1868. 



Ï0 CORRESPONDENTS. 



M. S. R., Wooler, Ont. — Your name will be submitted for election as an ordinary 

 member of the Entomological Society of Canada at the next meeting. The best 

 works that we can recommend to you to begin with are Packard's Guide to the 

 Study of Insects, now being published in parts at 50 cts. each, and Harris' 

 Insects Injurious to Vegetation ; other works, of course, will be required as 

 you go on. As a general introduction to the study, you should read Kirby 

 and Spence's Entomology, a valuable and highly entertaining work to any one 

 who cares at all for natural history. We shall be happy to procure Dr. Pack- 

 ard's work for you if you desire it ; two parts are now published. 



B. B., Ottawa; J. N., Belleville; J. R., Montreal. — A large supply of sheet cork 

 has been ordered from England ; we expect its arrival about the middle of next 



