14 THE WONDERFUL HOUSE THAT JACK HAS 



theless, even in our own country, many factories are 

 making hundreds of pounds of sugar daily from beets. 



Common salt is one of the most important miner- 

 als necessary to the body. It is contained in many 

 animal foods, and, as we know, some is used for 

 seasoning. It is better to put in salt during the pro- 

 cess of cooking, as less is required to give a thorough 

 seasoning. A small quantity is necessary to the body, 

 but care should be taken not to form the habit of 

 eating too much. Lime is another mineral substance 

 which must be supplied in our food, if the bones and 

 other hard parts are to continue healthy and strong. 

 Small quantities of magnesia, soda, phosphorus, 

 iron, and other mineral matter are also found in the 

 blood and various tissues of the body. Magnesia 

 and soda are present in most vegetables that grow 

 underground. Phosphorus is contained in the yolk 

 of eggs, and iron is found in all green vegetables. 



We have now read about the different com- 

 ponents of food, and their use to our bodies as build- 

 ing material. Shall we give these facts little or no 

 thought, and continue to eat what happens to please 

 our taste without regard to its benefit or injury? 

 Certainly none of us should be such foolish builders ! 

 On the contrary, should we not make our food serve 

 the purpose of building strong, vigorous bodies, 

 bodies in which the active muscles, the white teeth, 

 the ruddy complexion, the sparkling eye, all shall tell 

 of wisely chosen building materials and perfect health ? 



