234 
Determination of Specimens.—If the identification of plants 
is desired, the material submitted should include flowers, and fruit 
when obtainable. Identification of a single leaf is often impossible. 
— 
For identification of plant diseases, representative portions of the 
part diseased should be sent. 
Ill. DOCENTRY 
To assist members and others in studying the collections, the 
services of a docent may be obtained. Arrangements should be 
made by application to the Curator of Public Instruction one week 
in advance. No parties of less than six adults will be conducted. 
Vhis service is free of charge to members; to others there is a 
charge of 50 cents per person. For information concerning mem- 
bership in the Botanic Garden see pages v—vii of this Prospectus. 
IV. MEETINGS OF OUTSIDE ORGANIZATIONS 
fds: 
The Brooklyn Botanic Garden is glad to welcome outside or- 
ganizations wishing to hold meetings at the Garden, provided 
that the general purpose of the organization is closely allied to 
that of the Botanic Garden (e.g., Botanical Groups, Garden Clubs, 
Nature Study Clubs, Conservation organizations, ete.), or that 
the specific purpose of the meeting is of mutual interest and ad- 
vantage to the organization and the Botanic Garden. Meetings 
ary 
must always be arranged for in advance. A folder giving full 
details, and an application blank may be had by addressing The 
Custodian, 
V. COURSES OF INSTRUCTION 
Except courses A20 and A23, each of the courses here an- 
nounced is a unit and not a series of unrelated lectures. Students 
must enroll for an entire course. With the exceptions noted, no 
registrations will be made for separate class exercises. 
Courses of instruction are offered in Botany, Horticulture, and 
Nature Study, and are divided into five classes : 
A. For members and the general public (“ A” courses, p. 236) 
B. For teachers (“ B” courses, p. 240) 
C. For children (“ C” courses, p. 243) 
