DEVELOPMENT OF THE THEORY AND USE OF LACTIC ACID MILK
Since 1889, the theory of lactic acid milk has been begging to be announced. One arises from a review of the literature fascinated and with ever-increasing respect for one's predecessors. They knew the basic facts. Incomplete clinical facilities and a desire to shape these facts according to the scientific trends in bacteriology and metabolism then current led them to overlook the interpretation now considered important.The theory of lactic acid milk rests on four substantial columns of evidence:1. The High Buffer of Cow's Milk.—In 1889, Escherich,1 by simple titration, showed that cow's milk binds from two to three times as much acid as breast milk. He ascribed the low acidity of the gastric contents of artificially fed infants to this property and later calculated that the digestion of 1 liter of cow's milk required 3 liters of