NEW YORK ACADEMY OF SCIENCES. 21 



F. E. Clements, " The Causes of Dwarfing in Alpine Plants." 



F. E. Clements, " The Origin of New Forms by Adaptation." 



W. A. Orton, "A study of Disease Resistance in Watermelons." 



J. A. Harris, " The Problems of Vegetable Teratology." By invitation. 



W. F. Ganong, " A Preliminary Organization of the Investigation of the 



Ecological-physiological Life History of Plants." 



Forrest Shreve, '' TheVegetation of the Blue Mountains of Jamaica." 



By invitation. 



At the American ^ylnsenni of Natural History interesting ex- 

 ercises Avere held in connection with the unveiling of the busts of 

 ten American men of science, presented to the museum by Mr. 

 Morris K. Jesup. The science of botany was represented by a 

 bust of John Torrey. Dr. Xathaniel L. Britton, Director of the 

 New York Botanical Garden, made the memorial address. 



On the evening of the same day there was held at the museum, 

 in conjunction with the New York Academy of Sciences, a re- 

 ception and exhibit of recent progress in science. 



The next regular meeting of the American Association for the 

 Advancement of Science will be held at Chicago in the winter 

 of 1907-08. M. M. B. 



EXHIBIT OF THE NEW YORK ACADEMY OF SCI- 

 ENCES AT THE AMERICAN MUSEUM OF 

 NATURAL HISTORY. DECEMBER 

 28 AND 29, 1906. 



Botany. 



Vice-Chainiiaii, C. Stuart Gager ; Associate Committee, George 

 Francis Atkinson, John Merle Coulter, Byron David Halsted, 

 Duncan Starr Johnson, William L. Bray, Margaret Clay Fergu- 

 son, Edward Charles Jeffrey, Lucien M. Underwood. 

 I. (a) Map of the grounds of the New York Botanical Garden. 

 (b) Publications of the garden issued during 1906. 

 (r) Specimens from the Mitten collection of mosses, hepatics 

 and lichens (recently purchased for the garden, 

 through the generosit}' of members of the board of 

 managers ) . 

 (d) New apparatus: Photomicrographic Apparatus: Lieber's 



