_Handbook of Nature-Study._ ANNA BOTSFORD COMSTOCK. Comstock Publishing Co. _Hardenbergh's Bird Playmates._ Charles Scribner's Sons. Two sets: Land Birds and Water Birds. (Two large scenic backgrounds in color, with colored birds that can be slipped into place to complete the picture; for use during bird lessons, as a record of birds seen by the children, etc.) _History of North American Birds._ S. F. BAIRD, T. M. BREWER, and R. RIDGWAY. Three volumes. Little, Brown & Co. _Life Histories of North American Diving Birds._ ARTHUR CLEVELAND BENT. U.S. National Museum Bulletin 107. _Michigan Bird Life._ WALTER BRADFORD BARROWS. Michigan Agricultural College. _Mother Nature's Children._ ALLEN WALTON GOULD. Ginn & Co. _My Pets._ MARSHALL SAUNDERS. The Griffith and Rowland Press. _Natural History of the Farm._ JAMES G. NEEDHAM. The Comstock Publishing Co. _Nature Sketches in Temperate America._ JOSEPH LANE HANCOCK. A. C. McClurg Co. _Nature Songs and Stories._ KATHERINE CREIGHTON. The Comstock Publishing Co. _Nestlings of Forest and Marsh._ IRENE GROSVENOR WHEELOCK. Atkinson, Mentzer, and Grover. _Our Backdoor Neighbors._ FRANK C. PELLETT. The Abingdon Press. _Our Birds and their Nestlings._ MARGARET COULSON WALKER. American Book Co. _Our Greatest Travelers._ WELLS W. COOKE. (Reprinted in _Common Birds of Town and Country._) _Outdoor Studies._ JAMES G. NEEDHAM. American Book Co. _Passenger Pigeon, The._ W. B. MERSHON. The Outing Publishing Co. _Primer of Bird-Study._ ERNEST INGERSOLL. The National Association of Audubon Societies. _Propagation of Wild-Duck Foods._ W. L. MCATEE. U.S. Dept. of Agriculture Bulletin 465. _Sharp Eyes._ WILLIAM HAMILTON GIBSON. Harper and Brothers. _Short Cuts and By-Paths._ HORACE LUNT. D. Lothrop Co. _Some Common Game, Aquatic, and Rapacious Birds in Relation to Man._ W. L. MCATEE and F. E. L. BEAL. U. S. Dept. of Agriculture; Farmers' Bulletin 497. _Spring of the Year, The._ DALLAS LORE SHARP. Houghton Mifflin Co. _Stories of Bird Life._ T. GILBERT PEARSON. B. F. Johnson Publishing Co. _Story of Opal, The._ OPAL WHITELEY. G. P. Putnam's Sons. (The Journal of a child, who watched the comings and the goings of the little wood-folk and waved greetings to the plant-bush-folk, and who danced when the wind did play the harps in the forest--this being "a very wonderful world to live in.") _Summer._ DALLAS LORE SHARP. Houghton Mifflin Co. _Tales from Birdland._ T. GILBERT PEARSON. Doubleday, Page & Co. _Travels of Birds._ FRANK M. CHAPMAN. D. Appleton and Co. _Useful Birds and their Protection._ EDWARD H. FORBUSH. Massachusetts Board of Agriculture. _Wild Life Conservation._ WILLIAM T. HORNADAY. Yale University Press. _Winter._ DALLAS LORE SHARP. Houghton Mifflin Co. _Wit of the Wild._ ERNEST INGERSOLL. Dodd, Mead & Co. PERIODICALS _Bird-Lore._ Official Organ of the Audubon Societies. D. Appleton & Co. _Conservationist, The._ New York State Conservation Commission, Albany.