94 Sage, Tumi y-third Congress of the .1. 0. U. [$£* 



Committee was empowered to prepare a new edition of the Check- 

 List for publication as soon as practicable. 



Public Session. First Day. — The meeting; was called to 

 order by the President, Mr. Batchelder. An address of welcome 

 was made by Prof. II. C. Bumpus on behalf of the President and 

 Trustees of the American Museum of Natural History. 



The papers read during the morning session were as follows: 



'Some Unpublished Letters of Wilson and some Unstudied 

 Works of Audubon,' by Witmer Stone. Remarks followed by 

 Dr. Allen, and the author. 



'The Evolution of Species through Climatic Conditions,' by 

 Dr. J. A. Allen. Remarks followed by Dr. Bishop, Rev. H. K. 

 Job, Messrs. Chapman, Elliot and Bent, and the author. 



'Summer Birds of the Mt. Marcy Region in the Adirondacks,' 

 by Elon H. Eaton. Remarks followed by Dr. Fisher. 



'Pelican Island Revisited,' by Frank M. Chapman. Illus- 

 trated by lantern slides. 



The papers of the afternoon were: 



'Some Breeding Warblers of Demarest, X. J.,' by B. S. Bowdish. 

 Illustrated by lantern slides. Remarks followed by Mr. Chubb, 

 and the Chair. 



'Notes on Wing Movements in Bird Flight,' by William L. 

 Finley. Illustrated by lantern slides. Remarks followed by Dr. 

 Palmer. 



'The Status of Certain Species and Subspecies of North Amer- 

 ican Birds,' by Jonathan Dwight, Jr. Remarks followed by 

 Messrs. Oberholser, Lucas, Elliot, and Dr. Allen. 



'Wild-fowl Nurseries of Northwest Canada,' by Rev. H. K. Job. 

 Illustrated by lantern slides. 



In the evening the members of the Union, and their friends, met 

 at dinner at the Hotel Endicott. After the dinner an informal 

 reception was held at the American Museum of Natural History, 

 with an exhibition of a new projection apparatus. 



Second Day. — The meeting was called to order by the Presi- 

 dent. The papers read during the morning session were: 



'Andrea? Hesselius, a Pioneer Delaware Ornithologist,' by C. 

 J. Pennock. 



'The Probability of Error in Bird Migration Records,' by Witmer 



