JOHN D. SHERMAN, JR., MOUNT VERNON, NEW YORK 



OFFERS 



An Important New Bibliographical Work 



A Catalogue of the Coleoptera 



of America, North of Mexico 



By CHARLES W. LENG 



A catalogue of the 18,547 species, giving the geographical range 

 of each, together with page reference to the original description, 

 including also varieties, sub-species, synonyms, etc. Also — a sep- 

 arate bibliography of over 4,000 titles, occupying 78 pages of 

 text — the FIRST Bibliography of North American Beetles. Also 

 an exhaustive historical and analytical exposition of the various 

 systems of classification which have been proposed for this order 

 of insects. 



Prof. H. F. Wickham has contributed a list of the 800 Fossil 

 forms so far found in North America. 



Dr. L. O. Howard, Chief of the United States Bureau of Ento- 

 mology, reviewing this work in " Science," May 6, 1921, says: 



"As a result of the publication of this long expected and thor- 

 oughly admirable Catalogue, American Coleopterists for the first 

 time in many years know where they stand. Its publication is a 

 great big stepping stone. It is one of those indispensable things. 

 Every entomologist, including the economic entomologist, must be 

 able to consult it, and all libraries must have it." 



Sise of book, 7^ by 10^ inches, 4/0 pages. 



PRICE, IN PAPER COVERS, POSTPAID, TEN DOLLARS. 

 BOUND IN BUCKRAM, ONE DOLLAR EXTRA. 



For full description, see this Bulletin, Vol. XVI, Nos. 3-4, June-October, 



1921. 



JOHN D. SHERMAN, JR. 



132 PRIMROSE AVENUE, MOUNT VERNON, NEW YORK 



