476 NATURE-STUDY 



shady cliffs, or near springs. (References as the last — also 

 156, i59> etc.) 



Mushroom:* Simple study of its form and structure, 

 rapid growth, edibility or poisonous character. Refer to 

 mycelium in the ground or tree as the largest part of the 

 plant. General effect of a fungus on a tree. (195, 152, 154, 

 iSS> iS9> 167, 180, 190.) 



Winter 

 Plants. 



Bacteria: (In connection with physiology). (209, 190, 

 152, 156.) Simple cultures of bacteria (165, 166, 209.) 

 Show in masses, and by color, decay effects, etc., and not 

 with microscope. Very simple experiment in contagion. 

 (Sterilize a potato by baking. Cut with sterilized knife. 

 Touch one-half against a dusty surface. Keep both moist 

 under glass, and observe from day to day.) Refer briefly 

 to disease bacteria. Sterilization experiments. Apply to 

 drinking water. 



Fruit Moulds: Simple cultures and mere observational 

 lessons. Why is the fruit cooked in canning? (209, 165, 

 166, 152, 156, 158, 246 " Canning fruit.") 



Plant Distribution: Visit greenhouse. Note tropical 

 climate and observe tropical plants* such as palms, banana, 

 amaryllis, lilies, cannas, callas, and orchids. Note the 

 beauty and remarkable patterns in many of these flowers. 

 Make a study of tropical vegetation and the conditions 

 under which it grows. Take palms and orchids as typical 

 plants. Read and show pictures. Characteristic arctic 

 flora: Sparseness and stunting of higher plants. Sphag- 

 num mosses of the tundras, and arctic reindeer "moss" 



