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delivered 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 
Protozoa: Paramoecium, Vorticella, and others. 
Pleurococcus. 
Spirogyra. 
Vaucheria. 
Blue-green algae. 
Moss plants: gametophyte and sporophyte, with capsules. 
Fern prothallia. For these, a Petri dish with a cover is the 
best container to bring, since the prothallia dry out quickly. 
Fern sporophylls (with sori). 
Coleus and Tradescantia—variegated green and white, loaned 
for photosynthesis experiment. 
. Cacti, Pitcher plant, Sundew (Drosera), and Venus’s Flytrap 
(Dionaea)—loaned for demonstration. 
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. 
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Teachers may also arrange to have various physiological experi- 
ments or demonstrations conducted at the Garden for the benefit 
of their classes. Communications in regard to these matters 
should be addressed to the Curator of Public Instruction. 
F. 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 Life 
Spring Wild Flowers 
Common Trees 
Fall Wild Flowers 
Forestry (2 sets) 
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