brids: Their Production and Uses;" "Tulips;" "Our 

 Park Flowers;" "Wild Birds of New York City;" "Shade 

 Trees: The Companions of Man;" "Dahlias and Their 

 Culture;" "The Geology of the New York Botanical 

 Garden;" "Rambles Among the Mountains;" "Reef- 

 Building and Land-Forming Sea-\Yeeds;" "Ethylene, or 

 the Gas That Puts Plants and Animals to Sleep;" "Har- 

 nessing the Sun: Can Botanists Solve the Motor- Fuel 

 Problem?" "Roses and Their Culture;" "Bolivian 

 Roads and Trails." The members of the staff are 

 frequently called upon to give lectures before garden 

 clubs and other associations, and to larger audiences by 

 radio, on horticultural and other botanical subjects. In- 

 formation of all conceivable kinds regarding plants is 

 being constantly sought from the Garden, and no such 

 inquiry is neglected. All this educational work, in its 

 great variety, is carried on without compensation to the 

 Garden or the members of its staff. 



The scientific researches and the publications of the 

 Garden are an important feature of its activities. 

 Researches and Through the extensive investi- 



Publications gations by the members of the 



scientific staff, the floras of many portions of the western 

 hemisphere are now becoming for the first time known, 

 and in this field of research the institution has acquired 

 a leading position in this country. Its publications are 

 numerous and diverse. Through its Journal, its mem- 

 bers are informed every month of its important events. 

 In its Bulletin, Memoirs and Contributions, as well as 

 in the pages of other scientific periodicals and books, ap- 

 pear the technical papers of its staff. Mycologia is a 

 technical periodical devoted to the fungi. Addisonia is 

 devoted exclusively to the illustration by colored plates 

 of the plants of the United States and its territorial pos- 

 sessions and of other plants flowering in the Garden, with 



[6] 



