658 



ANNUAL REPORT OF THE 



Off. Doc. 



fined to cities and hospitals. Such milli should be used only by 

 the prescription of a physician. In general, cows' milk contained 

 more fat and sugar, and less casein, albumin and ash than human 

 milk. The following description serves to give an idea of how such 

 preparations are made. The milk is cooled at once after milking, 

 its amount of fat determined, and it is then diluted with an equal 

 bulk of boiled water. This mixture is then run through a separator. 

 By this process the liquid coming from the cream spout can be made 

 to give a product higher in fat in relation to casein and albumin than 

 in the normal cows' milk and closely approximating their amounts 

 in human milk. To 100 pounds of this product are added about 

 two pounds of milk-sugar. 



(3.) Condensed Milk is usually prepared by evaporating water from 

 normal milk in vacuum pans to a pasty consistency. Uusuall}', 

 more or less cane sugar is added to it and, when so treated, it is 

 often called "conserved" milk. Onlv milk that has been carefullv 

 produced in respect to cleanliness is used for condensing. The fol- 

 lowing analyses give the composition of some condensed milks: 



Condensed milk is used only where fresh milk cannot be obtained, 

 or where fresh milk is unsatisfactory in quality, and its use is, 

 therefore, somewhat limited, but if: furnishes an added outlet for the 

 milk producer. 



93. Special Varieties of Cheese. 



There are made in America and Europe more than 150 different 

 kinds of cheese. In this country most of the cheese made is the 

 Cheddar variety, but there are prepared, to a limited extent, several 

 other kinds, some of which are successful imitations of foreign varie- 

 ties of the same name. American home-trade cheese is usually made 

 by the "stirred curd" or "granular" process and resembles cheddar 

 cheese in general qualities, except that it is made to hold somewhat 

 more moisture. /Sage cheese is ordinary cheddar cheese containing 



