(2) 
and herbarium specimens and of books have all been ma- 
terially increased. New plantations have been established 
in various parts of the grounds and the older plantations 
have been modified and elaborated. Direct educational 
work with the public and with children from the public 
schools has been continued by lectures, demonstrations, 
and by docentry. Investigation work over a wide range 
of subjects has been carried out by advanced students, by 
visiting officers of other institutions and by members of 
the staff, and the publications have been continued. Gifts 
of plants, books and specimens have been numerous, and 
large accessions to the collections have been made by ex- 
change of duplicate material with other gardens and 
museums. 
Grading and Drainage 
During the year, the areas bordering the new arboretum 
driveway from near the Bleecker Street entrance south- 
ward to the southeastern entrance were completely graded, 
regulated and drained, and the land affected made ready 
for sowing and planting in the spring. Considerable grad- 
ing work was done about the completed part of conserva- 
tory range no. 2 and around its boiler house. The regu- 
lating and grading of the banks along the east side of the 
river road were essentially completed. The land along 
the base of the retaining wall of the Bronx Boulevard in 
the northeastern part of the grounds was completed. 
Work was continued in filling and draining low areas in 
the north meadows, where considerable work still remains 
to be accomplished. At the approach to the Woodlawn 
Road entrance, advantage was taken of opportunities to 
obtain several thousand cubic yards of earth filling required 
there, without cost, by permitting contractors to dump 
surplus earth from construction operations in the building 
of edifices outside of the Garden. The removal of the 
last of the several knolls near the museum building was 
continued and the rock utilized for the foundations of 
paths in various parts of the grounds. 
