Subscribers are invited to tnake liberal use of this column. Notices over three lines 

 are liable to be shortened if necessary. All insertions free to subscribers. 



Wanted. — To exchange, a lot of books and pamphlets on entomolog-y 

 (Coleop., Lepid., Mussels) for R. B. Hough's "Trees of the Northern United 

 States and Canada." For further informaiion, write : Wm. H. Broadwell, 

 571 Hawthorne Ave., Newark, N. J. 



Wanted. — Papers on North American Entomology not in my library, in 

 exchange or for cash. Have many duplicate papers on insects. W. Betten- 

 MiLLER, Am. Mus. Nat. Hist., New York. 



Orthoptera and Coleoptera from Iowa ; will exchange in series or from 

 lists. Correspondence invited. — M. P. Somes, Iowa City, Iowa. 



Crane Flies (Pipulidae) wanted from any locality in North America, but 

 especially from the far North. Will give in exchange Coleoptera, Lepidoptera, 

 Diptera, or pay cash. — Dr. W. G. Dietz, Hazleton, Pa. 



Wanted. — Eggs of the genus Catocala, for cash or in exchange for pup£e 

 of Colosamis angulifera and other species of Lepidoptera. — Frank Koler, 17 

 Seymour St., Hartford, Conn. 



European Coleoptera, Lepidoptera, Hymenoptera, Decapods, Crusta- 

 ceans, rare minerals, fossils of all grades, shells terrestrial, fluviatile and marine, 

 and prehistoric objects, offered in exchange for specimens of a similar kind. 

 Send lists and particulars. — A. DuCHAUSSOV, Caudebec-les-Elbeuf, Seine-Inferi- 

 eure, France. 



Imported Indian Cocoons.— Atlas, Mylitta, Roylei, Selene, Leto, Trifenes- 

 trata, Ricini, Edvvardsi and others, for pup^e of Regalis, Versicolora and other 

 native species. — James L. Mitchell, 212 Indiana Trust Building, Indianapolis, 

 Indiana. 



PoLYPHYLLA VARIOLOSA offered in exchange, — Have you fine specimens 01 

 this rare N. A. beetle in your collection? If not, send me a list of not over 

 twenty rare species that you can offer in exchange. My supply of specimens 

 is limited. — Philip Laurent, 31 East Mt. Airy Ave., Philadelphia, Penn. 



RiLEv"s Missouri Reports. — A complete set to be exchanged for Hamilton 

 or Oriskany Brachiopods. Also many entomological pamphlets for exchange. — 

 D. K. Greger, Fulton, Mo., U. S. A. 



Wanted. — Ann. Reports of Ent. Soc. of Ontario, Nos. 2, 3, 7 and 8 ; Ex- 

 periment Station Record, Vol. 3, No. 4, and V^ol. 4, No. 5 ; Proc. of Ent. Soc. of 

 Philadelphia, Vol. 2 ; Trans, ot Am. Ent. Soc, Vols. 2 and 3 ; Bull, of Brooklyn 

 Ent. Soc, Vols. I, 2 and 3 ; Papilio, Vol. 2, Nos. 2, 3 and 7, and Vol. 3, No. i, 

 — R. W. Harned, Agricultural College, Miss. 



Micro-Lepidoptera. — Wanted, Coleophora species, with larva cases and 

 full data (including name of food- plant), for exchange or cash. — W. Wild, 212 

 Law Exchange, Buffalo, N. Y. 



Wanted, connections with reliable entomologists in California, Arizona and 

 Florida, for mutual assistance in experimental work with Heterocera and 

 Rhopalocera Carlo Zeimet, 170 William St., New York (P. B. O. 1613). 



Lepidoptera for exchange. Pupae of Malacosoma pluvealis, M. disstrea, 

 western form, Imagoes Lemonias Taylori, Phyciodes pratensis, and many other 

 local species. — A. J. Croker, 1045 McClure St., \'ictoria, B. C. 



Wanted. — Exchange for common insects of all groups, also microscope 

 slides and teaching mateiial. — W. C. Barbour, Succasunna, N. J. 



