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'or Sale, ?xchange and Want Coltlmn.--In 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 nol for sale. For this department address W. LEE CHAMBERS, ]?agle Rock, Los Angeles 'County, California. WANTED--At the prices indicated: O. & O. Semi-Annual, vol. }}, no. 2, $1.00; Wilson Quarterly, vol. xx, no. 1, $.50; Bird-Lore, vol. i?i, no. 3, $1.00; the same, vol. wi, no. 1, $1.00; the same, vol. x?, no. 5, $.50.--D]g. W. l?l'. TYLER, Lexington, Mass. WANTED--Choice sets of the following Warblers: A. O. U. nos. 640, 646, 646b, 647, 649, 650, 651, 652b, 653, 656a, 660, 662, 663a, 664, 668, 669, 670, 672, 675a, 678, 681c, 681e, 682. Satisfactory remuneration. Send full list of sets. Many common ones needed. Want also 131, 204, 215, 328, 332, 352a, 372, 405. Old correspondents please write.--A. E. Pmc, Grant Park, Ill. FOR SALE or EXCHANGE--Premo Cam- era, full outfit, 4x5, in A1 condition; collec- tions of marine and fresh water shells, 2000 species, 5000 specimens; of minerals, 275 specimens; of fossils, 250 specimens; 70 glass mounts; 216 moths and butterflies; 6 foot mounted alligator; a large list of curios; a collection of old French letters and parchments, dates 1427 to 1800, two signed by Louis xv. Will sell any or all of above for cash, or exchange for sets of birds eggs, mounted birds, bird skins, Indian stone relics, books or magazines.--H. F. DUPREY, Dixon, Calif. BOOK INFORMATION WANTED--Will each owner of complete files of the Auk look at first six volumes and see if they are the ones which bear the autograph of my father, I-L B. Bailey, on the front page. If you know of the whereabouts of these volumes com- municate with me and oblige.--H. H. B.?ILEy, lqewport lqews, Virginia. FOR SALE--A few copies of Shufeldt's "Contribution to the Study of the 'Tree- Ducks' of the genus Dendrocygna." (Zoolo- gische Jahrbilcher, 1914; price in Berlin $4.40.) Pp. 1-70; 16 Plates; colored figures of all the known species. Price, including postage, $3.00 each.--R. W. SnVrELOT, 3856 18th Street, N. W., Washington, D.C. I WISH to obtain Auk, vols. i and ?, Bird- Lore, vol. xv, no. 3, and can offer many odd numbers of ornithological papers in ex- ehange.--ViKwO]g Tsc?xus?, RITTER ZU SCIIMID- ?qOr?FEN, Villa Tannenho? bei Hallein, Salz- burg, Austria. I WANT one copy each of "The Blue Bird", vol. 6, nos. 1 and 2, published at Cin- cinnati, Ohio; edited by Dr. Eugene Swope. --W. LEE CHAMBE]gS, Eagle Rock, Los Ange- les County, California. WANTED--Copies of any of the follow- ing publications. Nidiologist, vol. 1, no. 2, Oct., 1893; Osprey, N. S., 1902, March, April and July; Oologist, May and December, 1897, April and September, 1899; Wilson BulL, no. 4, 1894.--B. H. SWALES, Grosse Isle, Mich. BOOKS FOR SALE--Fisher, A. K. Hawks and Owls of the U. States in their Relation to Agriculture. A nexv, fine copy, 25 col. pls. Rare. Washn., 1893. $6.00. Bendire, Charles. Life Histories of 2Vorth American Birds, their Breeding Habits and Eggs. Washington, 1892 & '95. 4to, original paper covers, uncut, clean and new. 19 colored plates of eggs. $16.00. Same. In orig. cloth, uncut. $18.00. N.A. Fauna, no. 23, Index Gonerum Mammallure: A List of the Genera and Families of Mammals by T. S. Palmer, pp. 984; 1904. $4.00. Coues, E. Handbook of Field and General Ornithology. A manual of the structure and classification of Birds. 112 illusts., 8vo, cloth, 343 pp. London, 1890. As new, $2.00. Coues, E. The Birds of the Colorado Valley. Contains the bibliography, pp. 567-784, invaluable to anyone forming a collection of ornithologi- cal books. Wash., 1878; original binding and in good condition, $4.00. Nidiologist, vol. ii, $1.50; ?, $2.00; iv, $1.50. All new in parts as issued. This is one of the early publica- tions in which Cooper Club papers were published.--W. LEE CHAMBERS, Eagle Rock, Los Angeles County, California. WANTED--Publications of the Bureau of Biological Survey, as follows: Bulletins 2, 4; North American Fauna, 25.--TRxcy I. STORE]g, Museum o! Vertebrate Zoology, Berkeley, Calif.