286 



MODERN METHODS OF TESTING MILK 



PAGE 



Testers, Babcock .... 38 



Bottle ....... 49 



Electrical ...... 41 



Estimating speed of ... 41 



Hand ...... '. 40 



Steam-turbine ..... 39 



Testing, accuracy of test bottles, 



etc ........ 46 



Acidity of cream, milk, etc. 131-151 



Age of milk . . . . 153, 174 



Butter ..... 102, 103 



Cheese . . ..... 109 



Condensed milk .... 97 



Cows on farm ..... 211 



Dirt in milk ..... 163 



Milk powders ..... 99 



Pepsin ..... . . 174 



Rennet ....... 169 



Texture, commercial, of butter 221 



Of cheese ...... 235 



Titration ....... 135 



Total solids of milk. See milk- 



solids. 



Trier for testing butter . . 219 



Cheese ....... 233 



Tube, sampling ..... 27 



Turbine testers ..... 39 



Van Norman acid test . . . 141 



Volatile acids in milk-fat . . 4 

 Volume of liquid, changing to 



weight ...... 269 



Waste-acid jar ..... 53 



Water in butter, tests for . 110-124 



In milk, amount of ... 1 



Causes of variation ... 2 



Detection of, in adulterated 201 



In butter-testing .... 110 



In commercial testing and 



judging of butter . . . 223 

 In milk and milk products 15, 16 



Used in Babcock test . . 64 



Watered milk, detection of . 201 



Weighing samples of cream . 87 

 Weight of any constituent of 

 milk and products, how to 



find ....... 253 



Changing to volume . . . 269 

 Weights and measures, equiva- 



lents of metric system . 273 



Whey, composition of . . . 16 



Definition of ..... 19 



Testing of ...... 81 



Whirling test-bottles ... 59 



Wisconsin curd-test . . . . 155 



Tests for water in butter . 117 

 Yield of butter, how to calcu- 



late ....... 257 



Buttermilk ...... ; 



Cheese, for fat .... 258 



Cheese, from fat . . . . 259 



Cheese, from fat and casein 



259-2*61 



Cream ........ 271 



Skim-milk ...... 272 



