296 



Testing Milk and Its Products. 



Pasture, influence on quality of 

 milk, 156. 



Patrick's teat, 5 ; method tor de- 

 termining water in butter, 236. 



Percentages, average, methods of 

 calculation, 172 ; fallacy of aver- 

 aging, 171. 



Phenolphtalein. 122. 



Physician's centrifuge, use of, in 

 milk testing, 72. 



Pipettes, 30. 45 ; proper construc- 

 tion of points, 45 ; proper meth- 

 od of emptying, 31 ; calibration, 

 54. 



Pooling system, 3. 



Potassium bi-chromate, 16S. 



Power testers, 61. 



Preservaline, 135, 251 ; detection 

 of in milk, 135, 251. 



Preservatives, for composite sam- 

 ples, 167 ; in milk, detection of, 

 135, 251. 



Primost, 14. 



Process butter, detection of, 242, 



Proteose, 14. 



Quevenne lactometer, the, 106 ; 

 degrees corresponding to scale of 

 N. Y. board of health lactome- 

 ter, 106, 261. 



Readings of cream tests, 86 ; of 

 milk tests, 35. 



Eecknagel's phenomenon, 107. 



Eefractometer, ^Yollny, ; immer- 

 sion, use of for detection of 

 watered milk, 245. 



Eeichert number, 242. 



Relchert-Wollny method, 241. 



Eelative-value tables, 209, 274. 



Eennet tests, 140. 



Renovated butter, detection of, 

 242 ; boiling test, 242 ; Water- 

 house test, 242. 



Eeservoir for water In Babcock 

 test, 70. 



Richmond's milk scale, 110. 



E8ae-Gottlieb's method, 5, 222. 



Russian milk test, the, 71. 



I Salicylic acid, detection of, 252. 



Salt, estimation in butter, 239. 

 I Sampling cheese, 97 ; milk, 23, 29 ; 

 ' milk from single cows, 150. 



Sampling tube, for cream, 181 ; 

 McKay, 165 ; Michels, 1G."> ; Seo- 



Scales for weighing cream, 80 ; 

 milk, 100. 



Schmied method, the, 5. 



Scovell sampling tube, 163. 



Serum solids, 10. 



Short's test, 4. 



Siegfeld's modification of Babcoci; 

 test, 72. 



Sinking fund, 209. 



Separator cream, 19. 



Skimming of milk, detection o£, 

 116. 



Skim milk, 19 ; Babcock test for, 

 90 ; chemical analysis of, 228 ; 

 composition of, 258 ; condensed, 

 255 ; definition, 255 ; sp. gr., 

 102 ; test bottles, 92. 



Solids not fat, 10 ; formulas for 

 calculating 110 ; tables show- 

 ing, corresponding to 0-6 per 

 cent, tat and 26-36 lactometer 

 degrees, 263. 



Sour milk, sampling, 26 ; analysis, 

 228. 



Space system, the, 176. 



Specific gravity, 102 ; cylinders, 

 103, 107 ; influence of tempera- 

 ture, 104; of butter fat, deter- 

 mination of, 240 ; of butter milk, 

 229 ; of condensed milk, 230 ; of 

 milk, 217; of milk solids, 113; 

 of sour milk, 229 ; temperature 

 correction table, 262. 



Speed required for complete sepa- 

 ration of fat, 57 ; ascertaining 

 necessary speed in Bagcock test, 

 59. 



SpiUman's cylinder, 131. 



Standard measure for calibrating 

 test bottles. 50. 



Standards for Babcock glassware, 

 257, 258. 



