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Ti-TT (J. W.). A Xiitural History of the Britisli Lopi.loptera. Vols. I.— III. 

 8vo, Lonaoii, 1899— 19f)2. rurcluised. 



United States Department of AtiRicui.TTKE (Division of ENTOMOLOfiv), 

 IJuUetius (New Series). 



No. 31. Proceeiliugs of tlio 13th Annual Jleetiugof the Association 

 of Economic Entomologists (1901'). 



No. 32. In.sect Enemies of the Pine iu the Black Hills Forest 

 Keserve (1902). 



No. 33. Some Insects Injurious to ^'egetable Crops (1902). 



No. 34. Principal Insects liable to Ije distiibuted on Nursery Stock 

 (1902). 



No. 35. Report on Codling-Moth Investigations in the North West 

 aviringl901. 



No. 3G. An Index to Bulletins Nos. 1—30 (New Series). 



r. S. Dcpt. A(/vic. 



Verrall (G. H.). a List of Britisli Diptera. 2i\d ed. 8vo, Cambridge, 

 1901. The Author. 



W/VHLGnEN (E.). Collemboleu der scliwedi.sclien Polarexpedition, 189S. 

 [Of vers. K. Vet.-Akad. Forh., 1899.] 



Collembola auf Jan Mayen u. Ost-Grcinland. 



[Ofvers. K. Yet.-Akad. F5rh., 1900.] 



Collembola der Biiren-Insel. 



[Bihang K. 8v nska Yet.-Akad. Hand!. Bd. 2(1, 1900.] 



By Exchange. 



"WaterhotjSE (C. O.). Index Zoologiciis. Compiled for the Zoological 

 Society of London by C. O. 'NVaterhouse, and edited by Dr. 

 David Sharp, F.R.S. 8vo, London, 1902. Fnrcha^t,!. 



Wilson (E.). [See Shipley (A. E.).] 



Yerbuuy (Col. J. W.). A List of the Diptera met witli in Cork and Kerry 

 during the Summer of 1901. 

 [Irish Naturalist, Yol. XL] The Author. 



Zoological Society. Catalogue of the Library of the Zoological Society. 

 5th ed., London, 1902. The fiocicty. 



