128 
Upwards of 150 plants were given to be placed in the Solarium 
of the Triboro Hospital for the Tubercular. 
More than a hundred plants (trees, shrubs, and herbaceous 
plants) were supplied to embellish the grounds of the William 
Howard Taft High School. 
Leaves and seeds of Koelreuteria were sent to Dr. Albert 
Hartzell of the Boyce Thompson Institute for Plant Research, 
Yonkers, N. Y., for his studies in the insecticidal properties of 
various plants. 
— 
Eight lots of poison ivy leaves were supplied to a firm of 
manufacturing pharmaceutical chemists ‘to prepare an acetone 
extract and an extract with a new menstruum for testing purposes 
at one of the hospitals in the city.”’ 
52 plants, 96 cuttings in 23 varieties, and 1 package of seed 
were sent to the Botany Department of Taylor University, 
Upland, Indiana. 
Plants and cuttings of 14 species of tropical plants were 
supplied to the Agricultural Experiment Station, Knoxville, 
Tennessce. 
CouRSsES OF INSTRUCTION 
I conducted three courses of Instruction for Members and the 
General Public at the Botanic Garden. 
Respectfully submitted, 
MONTAGUE FREER, 
Horticulturist. 
REPORT OF THE CURATOR OF THE HERBARIUM 
FOR 1941 
To THE DIRECTOR: 
IT submit herewith my report for the year ending December 31, 
1941 
Tue Loca FLORA SECTION 
One of the most important types of plant habitat in the New 
York area 1s that affected by limestone ledges. The friable con- 
dition of the stone and the abundance of plant nutriment de- 
