THE MODIFICATION OF MILK 



95 



rings the bell, thus notifying the operator that the 

 tank is almost empty. 



F represents float. b, 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 



