267 
ered to the Garden, clean, and in general one week before the 
agar is desired. In all cases arrangements must be made by the 
teachers for calling for such material. 
MATERIAL USUALLY AVAILABLE 
1. Protozoa: Paramoecium and others. 
2. Pleurococcus. 
3. Spirogyra 
4. Vaucheria 
5. Blue-green algae. 
6. Moss plants: gametophyte and sporophyte, with capsules. 
7. Fern prothallia. For these, a Petri dish with a cover is the 
best container to bring, since the prothallia dry out quickly. 
8. Fern sporophylls (with sori). 
9. Geranium, Coleus and Tradescantia—variegated green and 
white, loaned for photosynthesis experiment. 
10. Cacti, Pitcher plant, Selaginella and others—loaned for demon- 
stration. 
11. Elodea—to show movement of protoplasm. 
. Various collections loaned for exhibit: e.g., lichens, fungi, 
plant diseases, fruits, modified leaves, demonstrations of 
Mendel’s law. 
H 
i) 
F, Demonstration Experiments.—Teachers may arrange to 
have various physiological experiments or demonstrations con- 
ducted at the Garden for the benefit of their classes. Communica- 
tions in regard to these matters should be addressed to the Curator 
of Public Instruction. 
G. Loan Sets of Lantern Slides.—Sets of lantern slides have 
been prepared for loan to the schools. Each set is accompanied 
by a short syllabus of explanatory nature. In all cases these sets 
must be called for by a special messenger and returned promptly 
in good condition. The subjects now available are as follows. 
Other sets are in preparation. 
Plant ene 
Spring Wild Flowers 
Common Trees 
Fall Wild Flowers 
Forestry (2 sets) 
gee CTS a 
