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the year in our children’s gardens. About 300 children were in 
attendance. At eleven o’clock the boys and girls assembled in 
the lecture room, where three reels of motion pictures of plant 
life were shown. ‘This is the first public exhibition of motion 
pictures at the Garden. ‘The ice-cream is purchased each year 
with money voluntarily contributed by the children during the 
summer. The “unexpended balance” has been appropriated 
each year to purchase some gift for the Children’s Garden. The 
first year a barberry hedge was purchased. Last year $25.00 
was contributed for a flag for the Children’s flag pole. This 
year the sum of $36.50 was presented to the director to be used 
for the support of a French orphan. This money was given for 
this purpose in memory of Benjamin Stuart Gager, a member of 
the 1917 garden. 
Cooperation with the Federal Government.—Dr. Olive, of 
the Garden staff, spent his summer vacation in plant dis- 
ease work for the Plant Disease Survey and Cereal Disease 
offices of the United States Department of Agriculture, and 
in cooperation with the Departments of Plant Pathology of the 
New York State Agricultural College, Cornell University, and 
the Virginia Polytechnic Institute. The work included a fruit 
tree disease survey of counties in the Hudson River Valley 
region; a study of onion smut conditions in the Wallkill Valley, 
of Orange County, N. Y.; an oat and barley smut survey trip 
through the Hudson River Valley counties ; and a study of a new 
wheat disease in western Virginia. The latter disease, caused 
by nematodes in the grains, appears to present a serious menace 
to wheat-growing in certain districts in Virginia, and the U. S. 
Department of Agriculture and the Experiment Station at Blacks- 
burg are much concerned over its spread. Methods of control 
include, besides rotation, the pouring of the grain into water and 
the skimming off of the black, lighter weight, diseased grains. 
Receipt of German Periodicals—The following German pub- 
lications were received September 27, 1918, at the Brooklyn Bo- 
tanic Garden Library through Martinus Nijhoff, The Hague. This 
was due to the efforts of the Committee on Importations, Amer- 

