5d 
t. Plant Life 
2. Spring Wild Flowers 
3. Common Trees 
4. Rice Culture 
A syllabus of a short talk on the subject accompanies each set 
of slides. 
Class Material for Schools 
During the year 358 petri dishes, eighteen test tubes, and four 
flasks were filled with sterilized agar for use in the study of bac- 
teria and fungi in the schools; there were six requests for Spsro- 
gvra and Elodea, and also other material, such as fern prothallia 
and sori, twigs of various species of trees, etc. In this way one 
college, eleven high schools, and one public school were assisted. 
The list is larger than ever before and indicates an increasing 
demand for this form of cooperation. 
Scout Work, Etc. 
The nature work of Mr. Stoll with Boy Scouts, Y. M. C. A., 
and similar groups, both in classes of instruction and examination, 
has been carried on as usual, reaching approximately 3,000 indi- 
viduals. The Boy Scout organization of the city has recognized 
his services by conferring upon him the title of Deputy City Com- 
missioner. On account of his increasing duties at the Garden, 
Mr. Stoll has now found it necessary to resign his position as 
expert examiner in Boy Scout subjects. About 360 Girl Scouts 
were brought to the Garden during the year for instruction in- 
nature subjects. 
Classes and Attendance 
The course for the training of gardeners, in cooperation with 
the United States Veterans Bureau, has maintained its efficiency 
of the previous year and continues to meet with the approval and 
indorsement of the Federal authorities. Prior to the date of 
my appointment Dr. Gundersen assisted in the instruction of these 
and other classes. 
The total attendance at all our classes and lectures was 63,104, 
an increase of over 15 per cent. above that of last year. The fol- 
