140 
SECOND BOOK. 
water or the mineral foods, but I should like to 
teach you something about the flesh-formers and 
heat-givers that are in our foods. 
“You must not make the mistake of supposing 
that an article of food can serve only one purpose. 
It may contain both what will form flesh and what 
will give warmth, as well as small amounts of water 
and minerals.” 
13 . “ My book says what the substances in the 
body are mostly made of,” said May; “ but I think 
the names are very hard.” 
“ Read them to me,” said Miss Brooks. 
14. So May found the place, and, with a little 
help, read out the words: “ carbon , hydrogen , 
oxygen, and nitrogen ”. 
Then Miss Brooks took the book and showed 
May the list of the chief minerals that are also in 
the body. The names in the list were salt, phos- 
phorus, sulphur, potash, and iron. 
HEAT-GIVING FOODS. 
l. “May,” said Miss Brooks the next evening, 
“ watch what I am about to do. I am going to put 
some corn-flour and some sugar on this hot shovel, 
which I have placed over the fire.” 
May wondered, and watched. Soon she cried 
out, “They are burning!” 
