ered to the Garden, clean, and in general one week before the 

 agar is desired. In all eases arrangements must he made by the 



i , i lii i hi dim 'I'm ikIi material. 



Material usually available 

 Protozoa: I 'aramoecium. Yorticella. 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 tin: prothallia dry out quickly. 

 Fern sporophylls (with sori). 

 Coleus and Tradcscanl ia variegated green and white, loaned 



for photosynthesis experiment. 

 Cacti, Pitcher plant. Sundew (Droscra), and Venus's Flytrap 



(Dinuaea) — loaned for demonstration. 

 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. 



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 oi 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. 



i. Plant Life 



2. Spring Wild Flowers 



3. Common Trees 



4. Fall Wild Flowers 



5. Forestry (2 sets) 



