WHERE MORE INFORMATION MAY BE OBTAINED.
U. S. Dept. of Agriculture, Division of Publications: Bird Houses and How to Build Them, Bulletin No. 609; Fifty Common Birds, Bulletin No. 513 (15 cents); The English Sparrow as a Pest, Bulletin No. 493.
Magazines which have published articles on birds and bird houses: Bird Lore; Country Life; The Craftsman; Elementary School Teacher; Ladies' Home Journal; Manual Training and Vocational Education; Outing; Outlook; School Arts Magazine; Something To Do; The Farm Journal; The National Geographic Magazine; Youths Companion.
National Association of Audubon Societies: Leaflets, photographs, advice.
Liberty Bell Bird Club of The Farm Journal, Philadelphia, Pa.: Leaflets, books, pictures, supplies, inspiration.
Public Library: Reed, "Bird Guide"; Blackburn, "Problems in Farm Woodwork"; Chapman, "Bird Life"; Hiesemann, "How to Attract Wild Birds"; National Geographic Society, "Common Birds of Town and Country"; Trafton, "Methods of Attracting Birds."
Catalogs of Bird House Companies: Audubon Bird House Co., Meriden, New Hampshire; "Bird Architecture" Crescent Co., Toms River, N. J. (20 cents); Joseph H. Dodson, 728 Security Bldg., Chicago, Ill.; "Bird Houses Large and Small," Mathews Mfg. Co., Cleveland, Ohio; Charles E. White, Box 45B, Kenilworth, Ill.; The Wheatley Pottery, 2429 Reading Road, Cincinnati, Ohio.