(i9) 



the Museums and the Curator of the Economic collections, 

 hereto appended, describe this work in detail ; the number of 

 specimens added to the museums and herbarium collections 

 during the year is over 50,000 and the number of specimens 

 mounted for the herbarium is about 112,000, a large number 

 of specimens received during previous years having been 

 mounted during 1900. 



I have accepted from Columbia University, acting for Bar- 

 nard College under the agreement entered into between the 

 Board of Managers and the Trustees of Columbia College, 

 Jan. 8, 1896, and the subsequent memorandum adopted by 

 both corporations in 1899, the herbarium formed by the late 

 Dr. Thomas Morong, the property of Barnard College. 

 This collection will be mounted and incorporated with the 

 Columbia Herbarium, already on deposit at the Garden, in 

 so far as the specimens do not duplicate those of the latter. 



Laboratories. 



The equipment of the laboratories has gone forward as ap- 

 paratus and supplies have been needed for the research work 

 of students and of the staff ; as appears from the report of Dr. 

 MacDougal, hereto appended, 28 regular students have been 

 accommodated ; in addition to these, laboratory facilities for 

 short periods of time have been supplied to specialists from 

 other institutions who have wished to use the facilities af- 

 forded bv us in their investigations. 



Lectures. 



A course of public lectures on Saturday afternoons, to 

 which all members of the Garden have been specially invited, 

 began on April 14th and extended until June 23d ; a second 

 course, commencing October 13th, extended until November 

 27th; the two courses comprised seventeen lectures; these 

 were well attended, the largest audience numbering nearly 

 500 persons, the smallest about 75 ; the subjects of these lec- 

 tures were duly announced in the monthly Journal. The 

 lecture hall has proven satisfactory in every way, since its 



