. Agriculture for common schools. Agriculture. 326 AGRICULTURE FOR COMMON SCHOOLS Lactometers are made to use with the temperature of the milk at 60° F. For each degree above this .1 of a lactometer degree is added to the reading*, or subtracted, if the tempera- ture is below 60° F., when using the Quevenne lactometer. When using the Board of Health lactometer one degree of. 76. A BABCOCK MILK TESTER AND TESTING OUTFIT change is made for each three degrees of temperature. The temperature should never vary much from 60° F. for good results. 2. There have been several schemes devised for determi
. Agriculture for common schools. Agriculture. 326 AGRICULTURE FOR COMMON SCHOOLS Lactometers are made to use with the temperature of the milk at 60° F. For each degree above this .1 of a lactometer degree is added to the reading*, or subtracted, if the tempera- ture is below 60° F., when using the Quevenne lactometer. When using the Board of Health lactometer one degree of. 76. A BABCOCK MILK TESTER AND TESTING OUTFIT change is made for each three degrees of temperature. The temperature should never vary much from 60° F. for good results. 2. There have been several schemes devised for determin- ing the per cent, of fat in milk, but at the present time there is practically but one used in this country. This is known as the Babcock test, and was invented by Dr. Babcock of the Wisconsin Experiment Station. In this test all the milk solids except the fat are dissolved by sulphuric acid, then by means of hot water and centrifugal force the fat is floated on the. 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 Fisher, Martin L. [from old catalog]; Cotton, Fassett A. (Fassett Allen), 1862-1941, joint author. New York, C. Scribner's sons
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