TOPICAL OUTLINE BY GRADES AND SEASONS 93 



Miscellaneous: Observe flax and sorghum in the garden 

 in connection with the geography work on these topics; 

 burdock as a type of weed; compare thistle and wild carrot; 

 the methods of exterminating them. 



Winter. — Biological: Crow; habits; detailed study of 

 the feathers; relation to man; evergreen trees on the cam- 

 pus, observation to be continued in the early spring when 

 the new cones are ripe. 



Physical: Water supply of the school; pump connec- 

 tions; observation of differences in pressure at basement 

 and third story; basement connections; air cushions; fau- 

 cets; city water system; pumping station; gauge; stand- 

 pipe; the laying of mains, if available; connections; cut- 

 offs; fire plugs; city fire limits; water heating cylinders 

 and water fronts in stoves; Normal and Bloomington fire 

 departments; city sewer system; house drainage; sinks; 

 traps; vents; catch-basins; wells; the water plane; percola- 

 tion of soil moisture; suction forces and lift pumps; the 

 siphon; buoyancy of liquids. 



Spring. — Garden: Potato; indoor study of the parts of 

 the tuber; the cutting of tubers for planting; discussion of 

 methods of planting; measure the amount to be planted; 

 potato scab observed if present and the method of com- 

 bating it discussed; experiments in connection with potato 

 culture; plant carrot, salsify, onions, seeds, and bulblets, 

 lima beans, petunia, torenia, ten-weeks'-stock, marigold, 

 and dahlia; garden plats drawn as indicated for preceding 

 grade; continue studies of tulip, gooseberry, and currant 

 started in the fall. 



Wild Flowers: How do these plants succeed in sending 

 up their leaves and flowers so early ? continue observations 



