86 
I, Laboratory Study (with compound microscope) 
1, Study of plant cell. (Using Spirogyra, a simple green alga.) 
2. Lecture on plant cell and functions of its parts. Comparison 
with animal cells. 
3. Study of leaf structure. (Using fresh cross sections of rose 
leaf.) 
4. Study of sections of potato tubers and of starch grains. 
3. Lecture on nature of color, photosynthesis, starch formation ; 
demonstration, by experiment, of need of light for photo- 
synthesis. Comparison of nutrition of animals and green 
plants. Respiration. Nature and composition of ordinary 
air. 
6. Study of bacteria from teeth, and of pathogenic bacteria from 
prepared slides. Review quiz on work to date. 
7. Lecture on bacteria. Laboratory study of yeast plant. 
8. Lecture on yeast, distillation, and distilled liquors. Labora- 
tory study of seeds of bean and grain of corn; in particular 
their stored food. 
9, Study of Cinchona plant (the source of quinine), and lecture 
on malarial parasite (Plasmodium malariae). 
— 
Ey 
). Iinal tests. Identification of medicinal plants on grounds and 

in conservatories : written test on laboratory work and lec- 
tures, 
Il. Field Work 
About half of each session is devoted to the study of the me- 
dicinal plants growing on the grounds and in the conservatories ; 
and, in addition, the study of common garden flowers, and of the 
various gardens, including the Japanese Garden, Rose Garden, 
Rock Garden, Wild Flower Garden, Children’s Garden, etc. Dur- 
ing the field trips, also, various ornamental and scientific features 
of the Garden, such as the armillary sphere, the meridian panel, 
glacial boulders, ete. are explained and discussed. At the final 
field test last fall the following plants were identified by the 
students : 

1. Lphedra distachya—lphedra—M ydriatic 
2. Thuja occidentalis—Arbor-vitae— Diuretic 
Oi 
Juniperus communis—Juniper—Diuretic 
