_Separation of Proteid Bodies in Vegetable Products_, pp. 432-448.—Preliminary treatment; Character of proteids; Separation of gluten; Extraction with water; Action of water on composition of proteids; Extraction with dilute salt solution; Separation of bodies soluble in water; Separation of the globulins; Proteids soluble in dilute alcohol; Solvent action of acids and alkalies; Method of extraction; Methods of drying separated proteids; Determination of ash; Determination of carbon and hydrogen; Estimation of nitrogen; Determination of sulfur; Dialysis. _Separation and Estimation of Nitrogenous Bodies in Animal Products_, pp. 448-462.—Preparation of sample; Extraction of muscular tissues; Composition of meat extracts; Analysis of meat extracts; Use of phosphotungstic acid; Separation of albumoses and peptones; Estimation of gelatin; Estimation of nitrogen in flesh bases; Treatment of residue insoluble in alcohol; Pancreas peptone; Albumose peptone; Authorities cited in Part Fifth. PART SIXTH. DAIRY PRODUCTS. _Milk_, pp. 464-512.—Composition of milk; Alterability of milk; Effects of boiling on milk; Micro-organisms of milk; Sampling milk; Scovell’s milk sampler; Preserving milk for analysis; Freezing point; Electric conductivity; Viscosity; Acidity and alkalinity; Determination of acidity; Opacity; Creamometry; Specific gravity; Lactometry; Quévenne lactometer; Lactometer of the New York Board of Health; Density of sour milk; Density of milk serum; Total solids; Formulas for calculating total solids; Determination of ash; Estimation of fat; Fat globules; Number of fat globules; Counting globules; Classification of methods of analysis; Dry extraction methods; Official methods; Variations of extraction methods; Gypsum method; Estimation of fat in malted milk; Comparison of fat methods; Wet extraction methods; Solution in acid; Solution in alkali; Method of Short; Method of Thörner; Liebermann’s method; Densimetric methods; Areometric methods; Lactobutyrometer; Volumetric methods of fat analysis; Method of Patrick; The lactocrite; Modification of Lindström; Babcock’s method; Method of Leffmann and Beam; Method of Gerber; Proteid bodies in milk; Estimation of total proteid matter; Copper sulfate as a reagent; Precipitation by ammonium sulfate; Precipitation by tannic acid; Separation of casein from albumin; Estimation of casein; Factors for calculation; Separation of casein; Separation of casein with carbon dioxid; Separation of albumin; Separation of globulin; Precipitants of milk proteids; Precipitation by dialysis; Carbohydrates in milk; Dextrinoid body in milk; Amyloid bodies in milk.