. Biggle cow book;. Cow. [from old catalog]. no BIGGLE COW BOOK. The cost per test is perhaps a quarter of a cent, and several tests can be made at once. The process is not patented, and any dairyman is at liberty to use it, including the centrifugal or whirling machine required for its operation. The Babcock appliances are for sale at all dairy supply stores at reasonable prices. Full and minute directions for operating the Bab- cock test are given in circulars sent out with the machine, and I need only describe the principle involved. A given amount of milk is placed in a test glass and the
. Biggle cow book;. Cow. [from old catalog]. no BIGGLE COW BOOK. The cost per test is perhaps a quarter of a cent, and several tests can be made at once. The process is not patented, and any dairyman is at liberty to use it, including the centrifugal or whirling machine required for its operation. The Babcock appliances are for sale at all dairy supply stores at reasonable prices. Full and minute directions for operating the Bab- cock test are given in circulars sent out with the machine, and I need only describe the principle involved. A given amount of milk is placed in a test glass and the same amount of sulphuric acid added to it. A milk test glass is shown Number 1, Figure i. The solution takes on a dark coffee color, owing to the action of the acid on the ! milk sugar. The acid first precipitates the ' casein and then dissolves it. The fat is set free, and is not acted upon by the acid. Number 2, in Figure 1, shows the acid measure and Number 3 is the pipette for measuring the milk. The exact size of the test bottle is not impor- tant, but the size of the neck and the accuracy of the graduation marks are of vital importance. It is essential that precisely a given amount of milk be used in the sample bottle ; that enough acid be used to liberate the fat; and that the amount of fat be accurately registered in the graduated neck of the bottle. The acid having been added to the milk, and mixed therewith, the bottles are placed in the pockets of the centrifugal machine and whirled for about five. 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 Biggle, Jacob. [from old catalog]. Philadelphia, W. Atkinson co.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphila, bookyear1898
