. Annual report of the Missouri State Board of Agriculture. Missouri. State Board of Agriculture; Agriculture -- Missouri. Improvement of Missouri Herds. 385 specific gravity is The richer a sample of milk in casein, milk sugar and ash, the greater its buoyant power and the higher specific gravity, which results in the lactometer stem not sinking to so great a depth as it would if less casein, sugar and ash were present. Hence, we find skim milk having a greater specific grav- ity than normal milk. On the other hand, the addition of water to milk lowers the specific gravity below ,
. Annual report of the Missouri State Board of Agriculture. Missouri. State Board of Agriculture; Agriculture -- Missouri. Improvement of Missouri Herds. 385 specific gravity is The richer a sample of milk in casein, milk sugar and ash, the greater its buoyant power and the higher specific gravity, which results in the lactometer stem not sinking to so great a depth as it would if less casein, sugar and ash were present. Hence, we find skim milk having a greater specific grav- ity than normal milk. On the other hand, the addition of water to milk lowers the specific gravity below , almost proportion- ally with the amount of water added. Milks very rich in fat have a lower specific gravity than milks which contain less fat. This is due to the additional fat in the milk lowering its specific grav- ity. A skilled operator can readily determine whether the in- crease or decrease in the specific gravity of milk is due to varia- tion in the water or in the fat content of the ^d'2rzd The Lactometer. QUEVENNE'S LACTOMETER. The lactometer is a piece of apparatus for determining the specific gravity of milk. It consists of a bulb (see Fig. 28.) weighted with mercury, attached to a glass tube of cylindrical A-25. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Missouri. State Board of Agriculture. Jefferson City, Mo. : Missouri State Board of Agriculture
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