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For Sale, 13xchange and Want Column.rain this space members of the Cooper Club are allowed one notice in each issue free of charge. Books and magazines can be offered for sale or exchange; bird skins and eggs can be offered in exchange, but nolfor sale. Notices must be written plainly, on one side only of a clean sheet of paper. For this department address W. LEE CHAMBERS, Ea?.?le Rock, Los An?clcs County, California. Ba?S Warq?ED.--The nndersigued is anxious to secure live bats (Chiro/dera) for photograph- mg and study. Information as to the location of colonies will be gratefully received. Living bats may be sent by express, charges collect, provided they are enclosed in strong tart per- forated boxes so that fl?e air will circulate freely. In special cases, outlay nece?ary to visit colonies will be refunded. Corres?nd with:--J. (?RIHHELL, l}[useum of Verlebrale Zoology, Unhzrsily of California, ?erkeley, Cat? WA?TED.?Joum. Maine Omith. S?., vols. I, 1I; vol. III, nos. 1-4; vol. 1V, nos. 2, 3; vol. V, no. 1; all after vol. X; Auk, vols. I to VIII; vol IX, no. 3; vols. XI. XII, XllI, XXVIII; Osprey, xol. I, no. 2; vol. IV, no. 3; Nidiol- o?st, ,vol. I, nos. 2-6; Bull. Mich. Omith. Club, any volume.?DR. T. W. RIChaRDS, ? ? ,5?vy, 1207 19lb SI. ? ?, IVashinglon, D.C. Wa?'r?D.?XX ill pay cash for any of the fol- lowing magazines in good ?ndition: Agassiz Ass'n Bulletin, I, 3, 6; Amev. Mag. of Nat. ?ience, I, 6; Am. Osprey, I, 1, 4, 5, 7, 8, 9, 10, 11; Auk, vol. II to VI; Hawke3e O & O, I, 2, 4, 6, 7, 8, 9, II, 2, 4; The tinminer, I, 1, 2, 3, 4, 7, 9; The Loon 1, 1, 2, 6; Oolo?st (Utica), vols. I to IV i Oolo?st's Exchange, II, 4: Orn. & Bota- nist, II, 3, 4, 5, 7, and any after; O & O, VIII, 9, 10, 11, 12; Stormy Petrel, I. l, 6; Warbler, Nov.-Dec., '03; O & O Semi-Ammal, I, l; Bull. Nuttall O?. Club, I, 4; and any numbers of fi?e following: Bay S?te Oolo?st, Curlew, tipsier Naturalist, The Owl. Send list of what yon have; I will make cash offer.?D?. W. I. glx?c?m?, 603 Beacon Bldg:, II%hita, ?hnsas. WASYEP FOR CaS?.?omplete set or parts of The Condor, Oologist, Binl-Lo?, Wil?n Bulletin, Ornithologist & Oolo?st and The Cbndor vols. I to X. inc.: Am. Ornithology, BinIs, Birds and Nature: al? b?ks by Cones, Torrey, C.C.Abbott, Keyer, Mrs. B?ley, Ridg- way, N. S. Goss.?J. XV. SwiFt, Slock/?orl, Ohio. WaNwED?Collecting panics desiring to visit the Pacific ?t islands ?uth of San Francisco to Magdaleua Ba3, Mex., nmy charter the fast ?at "Flyer". Special rates to C?per Club mem?rs and their friends. Write C. B. Lxs- YON INV?S?'MEN'f CO., LOll? Beth, CaL I WILl. PAV a good price for the following publications, all to be sound, iu their original covers and suitable for binding. I will accept bound vols. when bound in with original cov- ers. Birds, Birds and Nature, vols. 1 to 11 inclusive. The Oologist of Utica, N.Y., with its continuation the Ornithologist & Oologist, vols. 1 to 6 inclusive, all nos. of vol. 9 except 1, 5, 11 aml 12? The Oregon Naturalist, nos. & 3, vol. 1, nos. 1 & 2, vol. 2; Bulletin of Mich- igan Ornithological Club, all nos. issued; Bird? of Middle & N.A. by Ridgway,part 5; Catalogue of Canadian Birds, by M?coun, part 1; Wilson Bulletin, no. 8: The Iowa Ornithologist, vols. 2, 3 & 4; The Western Ornithologist, all nos. issued after no. 1 of vol. 5; The Petrel,all nos. issued af- ter no. 1 of vol. 1: The Atlantic Slope Naturalist, all nos. issued except nos. 2, 3, 5 of vol. 1; also all nmnbers issued of the following: The Or- nithologist and Botanist; The Oologist's change; The Wolverine Naturalist; The Oolo- gist's Advertiser; The Owl; Stormy Petrel; Gameland; The Mnseum; Curlew; The Hummer: The Egg Collector; The Bittern; Ohio Natural- ist; Cassinia, and many others too nnmerous to mention, so write me what you have. I have complete vols. of Oologist and Bird-Lore for exchange. GEORGE S1TrEI GUtON, dYapolon- ville, La. W?N?ED?Correspondence with all persons who have done any kind of ornithological work in Wyoming. Send me names and addresses of yonrselvesand friends. ERNES? PILLSBIJR W-?LKER, Depl. of Biology, Univ. of it,'yom., Laramie, it,'yo.m. WAN?ED--I will give two dollars cash for EACH number, in ORIGINAL COVERS, (2LEAN and in PERFECT CONDITION for binding, of the following publications, to-wit: XVilson Bulletin, nos. 4, 6, 7; The Osprey (new series), vol. I (1902), no. 7; The Oologist, vol. III (1886) vol. IV i1887), no. 1; vol. v (1888), no. 6; vol. VI (1889), no. 4; The Journal of the Maine Ornithological .Society, vol. IV, numbers 3 and 4; vol. V, no. 3; The Iowa Or- nithologist, vol. II, no. 4; vol. IV, nos. 2 and 4.--G. H. MESSENGER, President Linden Bank, Linden, Iowa. WANIED.--Of- the Utica Oologist, the follow- ing back nmubers for which I will pay the high- est cash price, viz: Volume It, nos. 1, 2, 3; VOl. III, nos. 9, 12; voI. lv, no. 7.--R.,M. BAR.?ES, Lacon, Iil.