166 NATURE-STUDY REVIEW [11:3— Mar., 1915 



3. Contact. 



A. Sputum ; brought into house on shoes. 



B. Mouth spray; singing, coughing, shouting, sneezing. 



C. Hands; handkerchief, towel. 

 Application — 



Ask the children to watch closely for a few days the people they meet and see 

 if they do anything that might enable the germs to be carried in any of the 

 ways mentioned above, supposing that these people had tuberculosis. 



(This lesson should be preceded by lessons on the nature and extent of the 

 disease; and followed by lessons on how to prevent the spread of tuber- 

 culosis.) 

 Materials — 



Pictures of tuberculosis germs; pictures illustrating any of the above means 

 of carrying germs. 



AUDUBON SOCIETY 



Sixth Grade — Spring 

 Child's Problem — 



What is the Audubon Society doing to protect birds? 

 Outline of Development — 



1 . Legislation. 



2. Wardens. 



3. Lecturers. 



4. Bird reservations. 



5. Publications. 



A. Bird Lore. 



B. Leaflets. 



6. Junior Audubon Societies. 

 A p plication — 



Have the children form a Junior Audubon Society to help protect birds. 

 Materials — 



Samples of the leaflets and pictures published by the Audubon Society. 

 A November-December issue of Bird-Lore, which always contains the 

 annual report of the Society, and has pictures illustrating their work. 



PIANO AND VIOLIN 



Seventh Grade — Winter 

 Child's Problem — 



In the making and tuning the piano and violin how are the different notes- 

 made to vary in pitch? 

 Outline of Development — 



1. Length of strings. 



2. Size of strings. 



3. Materials of which strings are made. 



4. Tension on strings. 



(These points should be developed by means of simple experiments.) 



