Vol iQW IU ] Sage, Twenty-third Congress of the A. 0. U. 95 



Stone. Remarks followed by Prof. Cooke, Dr. Fisher, and the 

 author. 



'Some Observations on the Applicability of the Mutation Theory 

 to Birds,' by Witmer Stone. Remarks followed by Drs. Allen and 

 Bishop, Messrs. Oberholser, Brewster and Fuertes, and the Chair. 



'The Song of the Hermit Thrush,' by Henry Oldys. Remarks 

 followed by Mr. Fuertes. 



'Impressions of English Bird-Life,' by Frank M. Chapman. 

 Illustrated by lantern slides. 



The papers of the afternoon were: 



'Similarity of the Birds of the Maine Woods and the Pocono 

 Mountains, Pa.,' by William L. Baily, followed by an 'Exhibition 

 of Lantern Slides' by the same author. 



'Discontinuous Breeding Ranges,' by Prof. Wells W. Cooke. 

 Illustrated by lantern slides. 



'The Principles of the Disguising Coloration of Animals,' by 

 Abbott H. Thayer. Illustrated with experiments and slides. 

 Remarks followed by Mr. Eaton and the author. 



The Chair announced that the afternoon session the following 

 day would be held in the Museum of the Brooklyn Institute of 

 Arts and Sciences. 



Third Day. — The meeting was called to order by the President. 



The following Committees were appointed by the Chair: 'Revi- 

 sion of the A. O. U. Code,' Dr. J. A. Allen, Chairman, Dr. Theo. 

 N. Gill, H. W. Henshaw, H. C. Oberholser, W. H. Osgood, Dr. 

 C. W. Richmond and Witmer Stone. 'Bird Protection,' Dr. A. K. 

 Fisher, Chairman, D. G. Elliot, Dr. T. S. Roberts, E. W. Nelson, 

 and Dr. C. W. Richmond. 



The papers of the morning were : 



'The Collection of Birds in the New York Zoological Park,' by 

 C. William Beebe. 



'A Contribution to the Natural History of the English Cuckoo, 

 with a review of the Literature on the Subject,' by Dr. Montague 

 R. Leverson. 



'Plumages and Status of the White-winged Gulls of the Genus 

 Larus,' by Dr. Jonathan Dwight, Jr. 



'A Contribution to the Ornithology of South Carolina, pertain- 

 ing chiefly to the Coast Region,' by Arthur T. Wayne. In the 



