Common disorders and diseases of childhood / by George Frederic Still.

  • George Frederic Still
Date:
1909
Catalogue details

Licence: In copyright

Credit: Common disorders and diseases of childhood / by George Frederic Still. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

    49/752 (page 33)
    by 3 ; and a comparison with human milk shows how widely sucli a mixture differs therefrom. Human milk. ( Casein, Proteid, 0-6 per cent. 2 per cent, j Lactalbumen, 1-4 per cent Fat, 3.5 per cent. Sugar, 7 per cent. Coiv's milk and water, 1 in 3. / Casein, Proteid, } ] .08 per cent. 1.3 per cent. 1 Lactalbumen, \ 0.25 per cent. Fat, 1.16 per cent. Sugar, 1.3 per cent. The casein is still nearly double the proportion which occurs in human milk. (I am not at present considering the other constituents ; my object now is only to show how far the ordinary dilution fails in its sole purpose—namely, the reduction of the casein, the curd proteid.) Even if three parts of water are used with one of milk, there is still a slight excess of casein, as can be seen from the following comparison (the percentages will, of course, be divided by 4) : Human milk. ( Casein, Proteid, J 0.6 per cent. 2 per cent, j Lactalbumen, i 1.4 per cent. Fat, 3-5 per cent. Sugar, 7 per cent. Coiv's milk and water, 1 in 4. (Casein, 0-81 per cent. Lactalbumen, 0'18 per cent. Fat, 0-87 per cent. Sugar, 1 per cent. It IS evident that in order to reduce the curd-forming proteid to the same proportion as is present in the mother's milk, four parts of dUuent must be added to one part of milk (1 in 5) ' The percentages will thus be divided by 5, and the result will be as shown here : Human milk. ICasein, 0-6 per cent. Lactalbumen, 1-4 per cent. Fat, 3-5 per cent. Sugar, 7 per cent. Cow's milk and ivater, 1 in 5. Casein, Proteid, 0.8 per cent Fat, 0-7 per cent. Sugar, 0.8 per cent 0-65 per cent. Lactalbumen, 0.15 per cent. But how often is mUk diluted to this extent ? Hardly ever even during the first few weeks of the infant's life ; and yet it is ometelr' -te a'n evidenc Jt; cT ^'^'^ digestion-that an infant ^ tl^t r^^'*'^^ or other gastro-intestinal trouble, mfk . , ^^«^-«^y four weeks old-it is having m:lk dnuted with only two parts of water or barley-water. Surdy D