SCORING MY HOME WATER SUPPLY 89 



Scoring my home water supply. Any boy or girl who 

 has read this chapter with thought now realizes the impor- 

 tance of our water supply and how great an advantage 

 those of us who live in cities have over those who have 

 no safe supply or to whom it is not delivered in pipes. 

 The score on the preceding page will probably be much 

 higher for those who live in the city. 



REFERENCE BOOKS 



Barber, General Science, Chapter IX. Henry Holt and Company. 



Broadhurst, Home and Community Hygiene, Chapter V. J. B. Lippincott Company. 



Butler, Household Physics. Whitcomb and Barrows. 



Caldwell and Eikenberry, General Science, Chapter IX. Ginn and Company. 



Clark, Introduction to Science, Chapter XXXIV. American Book Company. 



Hazen, Clean Water and How to Get It (Teacher's use). John Wiley and Sons. 



Hoadley, Essentials of Physics. American Book Company. 



Hunter, A Civic Biology, Chapter VI. American Book Company. 



Lynde, Physics of the Household. The Macmillan Company. 



Ritchie, Primer of Sanitation, Chapter XX. World Book Company. 



Smith and Jewett, Introduction to the Study of Science, Chapter V. The Macmillan 



Company. 



Yearbook, U. S. Dept. Agri., Clean Water and How to Get It on the Farm. 

 Weed, Chemistry in the Home, Chapter III. The American Book Company. 



