A Simple Specific Precipitation
نویسنده
چکیده
In recent years it has become a practical possibility to distinguish between various types of milk. The difficulty of providing children's hospitals with a sufficient supply of breast milk from wet-nurses has made it necessary to try to collect mother's milk either by voluntary contribution or by purchase. Thanks to successful collaboration with the local welfare centres, the Gothenburg Children's Hospital has succeeded in obtaining the required quantity of breast milk from mothers who have an ample supply of milk or from mothers who have already weaned their babies or are about to do so. In 1938, the Children's Hospital was thus able to purchase more than 300,000 c.c., three Swedish crowns per 1000 c.c. being paid for the milk. In the same way the welfare centres have succeeded in getting breast milk for special cases such as newborns and prematures, when for some reason the mother herself could not supply it. In several localities in Germany, France, Italy, and America, collection of mother's milk on a larger scale has been organized. In all these countries the necessity of controlling the contributed milk has arisen. A great deal of work has been devoted to trying to find a reliable method of detecting adulteration of breast milk by the addition of cow's milk. Both physicochemical and biological methods have been used. The methods and reactions used in differentiation between cow's milk and breast milk are briefly reviewed.
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