Archive image from page 41 of Dairy laboratory manual and note. Dairy laboratory manual and note book dairylaboratorym01anth Year: 1914 Grade Date. . (40) EXERCISE 21. Object.—To note the acidity of milk products, and to compare the method of determining the acidity. Apparatus.—Sample of milk; cream; cheese; skimmilk; buttermilk; Far- rington's, Mann's and Van Norman's apparatus; solution for acidity tests. Step 1. Follow the printed directions for the particular test being used. (See rule 6.)

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