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Prof. R. A. Harper, of Columbia University, and Prof. J. B. 
Overton, of the University of Wisconsin, visited the Garden on 
July 21, and Prof. Duncan S. Johnson, Professor of Botany and 
Director of the Botanic Garden at Johns Hopkins University, on 
September 17. 
On the afternoon of September 12, Prof. Hugo de Vries, 
of the University of Amsterdam, Holland, planted a tree in the 
Garden, and in the evening delivered a lecture at the Academy 
of Music, under the joint auspices of the Garden and the De- 
partment of Botany of the Institute, on “Plant Breeding in the 
University of Amsterdam.” Preceding the lecture an informal 
dinner was given to Prof. de Vries at the home of the Director 
of the Garden. 
The following persons were among those who attended the 
tree planting exercises: Dr. F. A. Lucas, Director of the 
American Museum of Natural History, New York City; Dr. C. 
B. Davenport, Director of the Station for Experimental Evolu- 
tion of the Carnegie Institution of Washington, Cold Spring 
Harbor, L. I.; Prof. Franklin W. Hooper, Director of the Brook- 
lyn Institute of Arts and Sciences; Col. Robert B. Woodward, 
Vice President of the Brooklyn Institute; the Hon William B. 
Coombs, of the Executive Committee of the Institute trustees; 
Dr. G. H. Shull, Station for Experimental Evolution; Dr. Fred 
J. Seaver, Curator, New York Botanical Garden. 
