ORNITHOPTERA ALEXANDRAE. 



Fine perfect specimens of this grand rare species are offered ; also O. 

 chimaera Zelotypia staceyi, superb rarity many others. Largest stock of 

 exotic Coleoptera, rarities and unnamed series. Also the most important 

 books on Entomology in stock. 



Janson & Sons, Natnralists & Booksellers 44, Great Russell St., London.W.C.I. 



pV"\D Q AI p* A large collection of butterflies Papilios 



only from all parts of the world. All 

 mounted and classified in three large cabinets. 



C. F. GROTH 



14 Poplar Place, New Rochelle, N. Y. 



PUBLICATIONS ISSUED BY THE 

 IMPERIAL BUREAU OF ENTOMOLOGY. 



THE BULLETIN OF ENTOMOLOGICAL RESEARCH 



Published quarterly. Containing original articles on Economic Entomology (illustrated). Ann- 

 ual Subscription in advance for Vol. xiii ( 1922), 155. post free ; separate parts 55. each, post 

 free. Prices of back parts on application. 



THE REVIEW OF APPLIED ENTOMOLOGY 



Published monthly. Containing reviews of current works on Economic Entomology throughout 

 the world. Published in two series, "A" dealing with insect pests of cultivated plants, and 

 "B" dealing with insects conveying disease or otherwise injurious to man and animals 

 Annual Subscription in advance for Vol. x (1922), Series "A" 125.; Series "B" 6s. post free. 

 Prices of back parts on application. 



Publication Office : 41 Queen's Gate, London, S. W. 7. 



WANTED. 



North American and Mexican Phanaeus and Monilerna. 

 Will purchase or exchange. 



DR. FRANK J. PSOTA, 

 3854 West 26th Street, Chicago, Illinois. 



The Kiangsu Bureau of Entomology 

 will collect Chinese insects in exchange 

 for books or pamphlets on Entomology. Send list with prices and 

 tell us what you want us to collect for you. Address 



C. W. WOODWORTH, Director, Nanking, China, or 

 American P. O., Shanghai, China. 



