3 28 



PUMPS, AND THEIR VALUE TO MAN 



close of the vacation, the pump can be removed and kept over 

 winter for use the following summer in another place. In this 

 TV ay the actual cost of the water supply can be reduced to 

 scarcely more than $3, the removable pump being a permanent 



possession. In rocky or mountain 

 regions the driven well is not practi- 

 cable, because the driving point is 

 blunted and broken by the rock and 

 cannot pierce the rocky beds of land. 

 Our summer vacation. It has 

 been asserted by some city health 

 officials that many cases of typhoid 

 fever in cities can be traced to the 

 unsanitary conditions existing in 

 summer resorts. The drinking water 

 of most cities is now under strict 



how supplying a city with 

 good water lessens sickness 

 and death. The lines b show 

 the relative number of people 

 who died of typhoid fever 

 before the water was filtered ; 

 the lines a show the numbers 

 who died after the water 

 was filtered. The figures 

 are the number of typhoid 

 deaths occurring yearly out 

 of 100,000 inhabitants. 



supervision, while that of isolated 

 farms, of small seaside resorts, and 

 of scattered mountain hotels is left to 

 the care of individual proprietors, 

 and in only too many instances re- 

 ceives no attention whatever. The 

 sewage disposal is often inadequate 

 and badly planned, and the water 

 becomes dangerously contaminated. 

 A strong, healthy person, with plenty of outdoor exercise and 

 with hygienic habits, may be able to resist the disease germs 

 present in the poor water supply. More often the summer 

 guests carry back with them to their winter homes the germs 

 of disease, which gain the upper hand under the altered con- 

 ditions of city and business life. It is not too much to say that 

 every man and woman should know the source of his summer 

 table water and the method of sewage disposal. If the con- 



