ILLINOIS AUDUBON SOCIETY 31 



10. Published Figures and Plates of the Extinct Passenger Pigeon. Illustrated 



by lantern slides. 

 R. W. Shufeldt, Washington, 1). C. (25 min.) 



11. Some Recent Experiences with Kirtland's Warbler. Illustrated by lantern 



slides. 

 Walter B. Barrows, East Lansing, Mich. (30 min.) 



Wednesday 



12. The History and Purposes of Bird Banding. 



F. C. Lincoln, Washington, D. C. (25 min.) 



13. Recent Returns from Trapping and Banding. 



S. Prentiss Baldwin, Cleveland, Ohio. (20 min.) 



14. Progress in Ornithology in 1920. (Introduced by Harry C. Oberholser.) 



General Discussion by the Alembers. (60 min.) 



15. The Desirability of a Definite Method of Indicating the Authorities for 



Scientific Names. 

 Frank M. Chapman, New York. (5 min.) 



16. Birds of South Florida. Illustrated by lantern slides. 



Arthur H. Howell, Washington. D. C. (30 min.) 



All Papers Illustrated by Motion Pictures 



17. Bird Life on the Audubon Reservation at Orange Lake, Florida. 



Norman McClintock, Pittsburgh, Pa. (45 min.) 



18. Trumpeter Swans. Presented by Major Allan C. Brooks. 



Hoyes Lloyd, Ottawa, Canada. (10 min.) 



19. Some Bird Studies in Motion Pictures. 



Thos. S. Roberts, Minneapolis, Minn. (25 min.) 



20. Xotes on the Summer Birds of Southeastern Texas 



T. Gilbert Pearson, New York. (45 min.) 



21. The Ornithology of the Peruvian Guano Islands. 



Robert Cushman Murphy, Brooklyn, X. Y. (45 min.) 



Thursday 



22. The Pterylosis of Manias benschi. Illustrated by lantern slides. 



J. P. Chapin, Xew York. (20 min.) 



23. The Pterylosis of the Avian Wing. Illustrated bv lantern slides. 



W. De W. Miller, Xew York. (30 min.) 



24. Post Mortem Changes in the Colors of Birds' Feathers. 



F. M. Chapman, and L. A. Fuertes. (10 min.) 



25. Sexual Dimorphism in Sula ueboiuri. Illustrated by lantern slides. 



Robert Cushman Murphy, Brooklyn, X T . Y. (10 min.) 



26. The Primaries of the Juvenal Plumage of Woodpeckers. Illustrated by 



lantern slides. 

 J. P. Chapin, Xew York. (10 min.) 



27. X^otes on X T ew or Little Known Birds from Xicaragua. 



W. De W. Miller, and Ludlow Griscom. (20 min.) 



28. Present Condition of Waterfowl Breeding Grounds on the Great Plains. 



Harry C. Oberholser, Washington, D. C. (30 min.) 



29. Some X T otes on European Birds. 



Henry Oldys, Silver Spring, Md. (20 min.) 



30. Xiiptial Habits of the Sage Cock. 



Frank Bond, Washington, D. C. (10 min.) 



31. X'esting of Mourning Doves at X'orman, Okla. 



Mrs. Margaret Morse X'ice, X^orman, Okla. (20 min.) 



32. X'orth American Shore Birds in Argentina. 



Roberto Dabbene, Buenos Aires — Presented by Frank M. Chapman. 



(15 min.) 



33. The Estimated X T umber of Long Island Shore Birds. 



J. T. Xichols, Xew York. (20 min.) 



34. Breeding of the Evening Grosbeak in Xcrthern Wisconsin. 



O. W. Smith. (5 min.) 



35. The Pronunciation of the Scientific Names of Birds. 



Francis H. Allen, Boston, Mass. (10 min.) 



RUTHVEN DEANE, CHICAGO. 



