46 
spring he generously contributed roots of thirty-eight choice 
varieties to the new dahlia border of the Garden, as acknowledged 
in the JouRNAL for August, 1918. 
On January 22, 300 pupils from Evander Childs High School 
visited the Garden to study living tropical plants, hardy trees, 
and plant products. They were in charge of Mr. Mann and some 
of his teachers, assisted by several members of the Garden staff. 
Mr. Hewitt gave an interesting illustrated lecture on forestry in 
the large lecture hall in the museum building. The weather 
was mild and the work of the pupils very satisfactory. 
A persistent search was made by Dr. A. H. Graves in the vicin- 
ity of New York City during the growing season of 1918 for 
chestnut trees that had escaped the ravages of the chestnut 
canker, but no immune trees were found. However, a number 
_of trees were located, which, according to Dr. Graves, give promise 
of highly resistant strains through inbreeding and crossing with 
resistant oriental species. 
Last summer, Mr. Eckstein Case presented to the Garden a 
series of water-color paintings made by his sister, Miss Mary 
Case, late of Cleveland, Ohio. These are on 225 loose sheets — 
and illustrate about 425 species of native American wild flowers 
from various parts of the United States, and two from the Giant’s 
Causeway, Ireland. Flowers and fruits of many of the species 
are figured, illustrating some very rare and interesting plants. 
These have been placed in two albums, and deposited in the 
library. Besides these, Miss Case’s copy of Mrs. Dana’s “How 
to know the Wild Flowers” was also presented. It is beautifully 
hand-colored with 383 illustrations, evidently done from living 
plants. 
The unusually mild winter has permitted much work on the 
grounds, which in ordinary winter seasons would have been im- 
