Infant Feeding Its Principles And Practice

Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: CHAPTER III. COW'S MILK. Practically the only available substitute for human milk is cow's milk. In some countries the milk of other animals has been given to infants, bu tin America the cow is the one prevailing source of supply. Cow's milk is a faintly acid fluid, of a yellowish- white color, that separates, on standing, into two layers. Within four to eight hours these layers are sharply defined, the upper very opaque, of a decided "creamy" yellow tint, containing nearly all the fat, and the lower translucent, bluish white, and nearly fat-free. The depth of the upper layer is more or less proportionate to the percentage of fat in the milk. Milk is sometimes turned blue by the Bacillus cya- nogenes (Hammer); this alteration appears to be harmless. Composition.?The composition of milk obtained from Holste