419 
Geography classes, as well as classes in nature study and botany, 
find the collection of useful plants in the Economic Plant House, 
the Local Flora Section, the Japanese Garden, and also the Merid- 
ian Panel, the Armillary Sphere, and the Labeled Boulders, valu- 
able adjuncts to their class work. Arrangements may be made by 
teachers of geography to have their classes study these collections 
under guidance. Illustrated lectures at the Garden for geography 
_— 
classes may also be arranged. 
To visiting college classes in geology and physiography t 
tanic Garden offers interesting material for a study of glaciation. 
Notable features are a portion of the Harbor Hill terminal moraine 
(Boulder Hill), the morainal pond (the “ Lake”), the labelled 
glacial boulders, and the Flatbush outwash plain. See Guide No. 
Te ECR LOIN) oy our Boulders: Glacial Geology of the Brooklyn 
Botanic Garden. 
— 
1e Bo- 
Talks at Elementary Schools.—The principals of public or 
private elementary schools may arrange to have talks given at the 
schools on various topics related to plant life, such as school gar- 
dens and garden work with children, tree planting, the conservation 
of wild flowers, Arbor Day, etc. If an illustrated lecture is de- 
sired, the lantern and operator must be provided by the school, 
but slides will be furnished by the Botanic Garden. Address the 
Curator of Elementary Instruction for a list of talks and for ap- 
pomntments. 
Talks at Secondary Schools and Colleges.—Informal illus- 
trated talks on various subjects of an advanced botanical nature 
are always gladly given at Secondary Schools and Colleges by 
members of the staff. Arrangements for such talks should be 
made with the Curator of Public Instruction. 
School Classes at the Garden.—Public or private schools 
both elementary and secondary, may arrange for classes to come 
to the Botanic Garden for illustrated lectures by a member of 
the Garden staff, or for guided tours through the conservatories 
and outdoor plantations. Such lectures, conservatory trips, and 
outdoor trips are planned for correlation with the New York City 
school syllabi in nature study, biology, and geography. 
