THE MODIFICATION OF MILK 



95 



rings the bell, thus notifying the operator that the 

 tank is almost empty. 



F represents float. h, brake. 



T, tank or vat. s, switch. 



w, weight. B, battery. 



See that everything is arranged for convenience, 

 neatness, and sanitation, and that there is no un- 

 necessary waste. All corners, joints, seams, and 

 crevices, in any apparatus in which milk or cream 

 is to come in contact should be smoothly soldered. 

 See "Creamery Conveniences" Exercise 35. 



EXERCISE XXIV 



The Modification of Milk for Infants and 

 Invalids 



The following is the average composition of various 

 kinds of milk : 



Very few invalids or infants are constituted exactly 



