Prof. S. P. Langley, Secretary of the Smithsonian 

 Institution, will preside. 



Pkof. J. W. Chickehing, Jr. -Dr. Gray and his Life-work. 



Dr. Georcb Vasey.— Dr. Gray's Botanical Works, and their Influence on Botani- 

 cal Science. 



Prof L. F. Ward. -Dr. Gray and Darwinism. 



Dk. C. V. Riley.— Personal Reminiscences of Dr. Gray. 



GEORGE VASEY, 

 F. H. KNOWLTON, 

 A. A. CROZ1ER. 



