THE OOLOGISt 



BOOKS 



WANTED — Oologist IV, 6, and all 

 numbers of 1919 and 1920; Check-list 

 of North American Birds, 1910; also 

 l^ent's Diving Birds. M. Nice, Norman, 

 Oklalioma. 



WANTED — A copy of Lawrence's 

 "Catalogue of the Birds found in Costa 

 Rica," (Annals New York Lyceum of 

 Natural History, IX, pp. 86-149). W. E. 

 Clyde Todd, Carnegie Museum, Pitts- 

 burgh, Pa. 



1 want to purchase old books on Or- 

 nithology and especially want Bulletin 

 of the Cooper O. Club. Vol. I — odd Nos. 

 W. Lee Chambers, Eagle Rock, Los 

 Angeles, California. 



BIRD-LORE FOR SALE — Complete 

 file. Vol. I. to date, mostly bound. Per- 

 fect condition. Cash offers, only. Ad- 

 dress, L. W. Robinson, Oradell, N. J. 



■WANTED for cash — Vols. I, II, III, 

 Ridgeway Oologist 382, 383, 391. J. A. 

 Munro, Okanagon Landing, B. C, Can. 



WANTED — February and June num- 

 bers 1918, Volume XXXV; April and 

 May Numbers 1919, Volume XXXVI of 

 The Oologist. R. M. Barnes, Lacon, 111. 



FOR SALE — The Birds of Virginia, 

 by H. H. Bailey; Birds of New Jersey, 

 by Charles Shriner; Report of New Jer- 

 sey, State Museum 1908; Birds of East- 

 ern Pennsylvania and New Jersey by 

 Wilmer Stone. Also as issued; A. C. 

 Bent's Life Histories of N. A. Diving 

 Birds (Nat'l Museum Bull. 113) and N. 

 A. Gulls and Terns (Bull. 107). First 

 satisfactory offer takes them. H. M. 

 Harrison, 319 Penn St., Camden, N. J. 



FOR SALE — Collection Butterflies — 

 Moths — 100 Different Specimens in 

 Reiker Mounts. At Bargain. Leo J. 

 Provost, 109 Cornelia St., Plattsburg, 

 N. Y. 



WANTED — Will pay cash for the fol- 

 lowing: Baird, Brewer & Ridgeway's 

 Water Birds & Land Birds. Bendire, 

 Vol. 2. W. D. Richardson, 4215 Prairie 

 .We., Chicago, 111. 



WANTED — Bulletin No. 107, Life 

 Histories of North American Diving 

 Birds, by A. C. Bent. For cash or will 

 consider excliange. John L. Cole, Ne- 

 vada, Iowa. 



WANTED— Will pay Cash — "Life 

 Histories of Noi-th American Birds." 

 Bendire, Vols. 1 and 2; "Life Histories 

 of North American Diving Birds," Bent. 

 W. B. Samson, 1005 North San Joaquin 

 St., Stockton, California. 



WANTED — Books, Pictures, Notes, 

 Records or anything giving informa- 

 tion about tlie nesting and eggs of the 

 DUCK HAWK 

 (Falco peregrinus anatum). 

 Will pay cash for anything I can use. 

 Karl A. Pemtaer, Woodstock, Vermont. 



WANTED — A collection of North 

 American birds. Common species par- 

 ticularly desired. Paul Bartsch, 1456 

 BeLnont St., Washington, D. C. 



FOR SALE — Nelson's Smaller Mam- 

 mals of North America. Bound in 

 library buckram, 59 colored illustra- 

 tions by Fuerles. Price postpaid $2.00. 

 Fred J. Pierce, Winthrop, Iowa. 



Learn the Optical Profession under 

 Graduated Optician, special mail course. 

 Make FIFTEEN TO FORTY DOLLARS 

 A DAY. Be independent. Prescription 

 Optical Company, Gastonia, N. C. 



Unusually Fine Unbound Library for 

 sale, including some 10,000 Author's re- 

 prints, excerpts, magazines, etc., chiefly 

 biological, zoology, Law, Medicine, art, 

 botany, etc. From all parts of the 

 world, and many autographed copies. 

 Rare opportunity for a general natur- 

 alist or the library of any Scientific 

 College, or otlier institution. Address, 

 Dr. R. W. Shufeldt, 3356 18th St., Wash- 

 ington, D. C. 



A FEW FINE SETS of Mourn i ng 

 Dove, Am. Coot, Mallard, Gadwall, 

 Tulie Wren, Gt. B. Heron, Ring Bill 

 Gull, Caspian Tern, Forsters Tern and 

 Avocet, in exchange for eggs in sets or 

 skins. Dr. A. G. Prill, Scio, Oregon. 



INDEX TO EXCHANGE PRICE LIST 

 — Why not paste a complete Species In- 

 dex into your Price List? Immense 

 time saver. Contact-typed, bond paper. 

 Fifty Cents; manifold, onion-skin, 

 Thi-rty cents, silver. P. B. Peabody, 

 Blue Rapids, Kansas. 



FOR SALE — 21 Eggs of American 

 White Pelican and 6 from broken sets. 

 Make cash offer for the 27 eggs. C. F. 

 Carr, New London, Wis. 



Get a CATALOG 



Before they are 



All Gone 



They are going hery fast. 



Less than 100 copies are left. 



