280 



GENERAL SCIENCE 



FIG. 176. A danger always present in this type of drinking fountain is that 

 of breaking the teeth of one child if another playfully pushes him when 

 drinking. This type of drinking fountain may prove to be worse than 

 the common drinking cup. Bacteria will remain in the little bowl and 

 in the water standing in it. Even if the water is allowed to run con- 

 tinually, bacteria and disease germs have been found constantly moving up 

 and down in the water. 



FIG. 177. This type of drinking fountain prevents the danger of having the 

 teeth broken. A person drinking cannot get his mouth in contact with 

 the metal. There is no bowl for the water to run back in,- since the water 

 meets in a spray at the center of the fountain and the excess water falls 

 back into the drain, 



