474 



NATURE STUDY AND LIFE 



the janitor? Why do we fail to give the lessons that will 

 flow out in health and cleanliness into all the homes of the 

 district and go with the children as long as they live ? 



'93-!94 



'97-:98 



'94^95 'gB-ige '96-97 



SCHOOL YEARS 



Fig. 195. The School and Contagious Diseases of Children 



The upper line for diphtheria gives the number of cases, the lower, the number of 



deaths. The summer vacations are indicated as breaks between the school years 



The following, published by the Health Department of 

 Providence, marks an advance in rational teaching of 

 cleanliness and personal hygiene. 



HEALTH DEPARTMENT 



Suggestions for the Teaching of Cleanliness among 

 School Children 



The poisons of some of the common and also of some of the most 

 loathsome diseases are frequently contained in the mouth. In such 

 cases anything which is moistened by the saliva of the infected per- 

 son may, if it touches the lips of another, convey disease. The more 

 direct the contact the greater the danger. 



