WATER. 
153 
we have to eat a greater quantity than if we take a 
small share of animal food with them. And then 
some parts of the body are likely to be overworked, 
in getting rid of the large amount of food that is 
taken in. 
11. “On the other hand, it is equally unwise to eat 
more animal food than we really need, and thus 
overburden the stomach with too much flesh-form- 
ing substance to digest. 
“ So I think you will agree that, for more reasons 
than one, it is best for us to have a ‘ mixed diet 
WATER.— I. 
1. One day Miss Brooks said to May : “ I think 
of taking you with me to hear a lecture which a 
gentleman in Kingston intends to give upon ‘Water’. 
As he is a doctor, and understands what is necessary 
for our health, I am sure you can learn more from 
him than from me.” 
2. May was delighted to go, and the lecture 
interested her very much. The lecturer began by 
speaking of the sources from which we get water. 
He said: “ Our supplies of fresh water are obtained 
from the rain, from springs or wells, and from 
ponds, rivers, and lakes. 
3 . “Rain-water is very soft; that is, there is no 
lime in it, as there often, is in water that has soaked 
