218 



SUBJECT INDEX 



Bacteria in milk, enumeration, of, 

 direct methods, 126 

 methylene blue test, 130 

 plate methods, 116 

 intra-mammary, 93 

 Bacterial counts, accuracy of, 117, 

 121 

 effect of sugars on, 118 

 Benzoic acid, 84 

 Borates, 83 

 Boric acid, 83 

 Breed of cattle, 37 



effect on fat constants, 38 

 effect on milk composition, 47 



Cane sugar, 88 

 Caramel, 86 

 Caseinogen, 7 



composition of, 8 



estimation of, 74 



hydrolysis of, 11 



meta, 7 



para, 14 



properties of, 10 



reaction with rennin, 13, 16 

 Catalase, 23 



estimation of, 91 

 CeUs, 171 



blood, 173 



epithehal, 172 



estimation of, 174 



foam, 173 



number in milk, 178 

 Certified milk, 138 

 Colonies, counting of, 125 

 Colostrum, 52 

 Colouring matter, 85 

 Complement, 26 

 Composition of milk, 34 



limits of, 37 



maximum variations, 35 



variations, 37 



Condensed milk, 88 



Conductivity, 31 



Containers, Bacteria in milk, 100 



Coolers, 100 



Counting lens, 126 



Cream, 87 



line in pasteurised milk, 185 

 Curd test, 197 



bacterial flora, 200 



types, 198 



D 



Death points in milk: 



B. diphtherifE, 187 



B. tuberculosis^ 187 



B. typhosus, 187 

 Debris, 161 



estimation of, 180 

 Diphtheroid bacilli, 158 

 Dirt, 161 



estimation of, 180 



significance of, 183 



testers, 182 

 Disease, effect on composition, 54 



Enrichment methods for B. coli, 140 

 Enzymes, 21 



effect of heat on, 186 



estimation of, 88 

 Epithehal cells, 172 

 Erythrocytes, 173 

 Excremental organisms, 135 



Fat, constants of, 2 



estimation of, 66 



globules, 1, 44, 52 



nature of, 1 

 Fermentation test, 197 

 Food, effect on composition of 

 milk, 39 



bacteria in, 99 



