SUBJECT INDEX 



Abnormal milk, 54 

 Acidity, 75 



and bacteria, 132 



of media, 119, 121 

 Acid producing organisms, 191 

 Aciduric bacilli, 195 

 Adulteration of milk, 55 



calculation of, 58 

 Agar media, 117, 120 



whey, 119 



lactose, 119 



lactose bile salt, 143 



aesculin, 143 



casein, 194, 208 

 ^.ggressins, 27 

 Air, bacteria in, 100 

 Albumin, 74 



effect of heat on, 189 

 Aldehyde value, 75 

 Alkali-forming organisms, 194 

 Ambocepters, 26 

 Amylase, 22 



detection and estimation, 91 

 Aniline orange, 86 

 Annatto, 86 

 Antibodies, 26 



"Appeal to the cow" test, 59 

 Ash, 50, 76 



estimation of, 69 



B 



B. abortus, 190 



characteristics of, 192 

 B. bulgaricus, 196 



B. hutyricus, 147 

 B. coli, 136 



appearance of colonies, 144 



calculation of results, 142 



effect of atmospheric tempera- 

 ture, 139 



enrichment methods, 140 



estimation of, 140 



grain types, 145 



liquid media for, 140 



plate methods of estimating, 143 



rate of development, 107 



type, classification of, 145 

 B. diphtherioB, 156 



detection of, 157 

 B. enteritidis sporogenes, 146 

 B. lactis acidi, 109 

 B. lactis aerogenes, 109, 119 

 B. paratyphosus, 161 

 B. tuberculosis, 135 



detection of, 164 



inoculation method, 165 



pseudo, 168 



types, 169 

 B. typhosus, 159 



isolation of, 160 

 Bacteria in milk, 93 



acid-producing, 106 



alkali-producing, 106 



development of, 102 



effect of brushing cows on, 98 



effect of low temperatures on. 111 



enumeration of, 113 

 Breed's method, 129 

 I by acidity, 132 



217 



