Milk analysis and infant feeding : a practical treatise on the examination of human and cows' milk, cream, condensed milk, etc. : and directions as to the diet of young infants / by Arthur V. Meigs.

  • Meigs, Arthur V. (Arthur Vincent), 1850-1912.
Date:
1885
Catalogue details

Licence: Public Domain Mark

Credit: Milk analysis and infant feeding : a practical treatise on the examination of human and cows' milk, cream, condensed milk, etc. : and directions as to the diet of young infants / by Arthur V. Meigs. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

    31/112 (page 27)
    standard by such well-known authorities as Car- penter, Kirke, Marshall, Edward Smith, Kehrer, and Gorup-Besanez. It is curious how all previous ex- perimenters and writers upon milk agree that human milk contains less casein than does cows' ; and yet, when the actual question of the relative composition is arrived at, the mean of Vernois and Becquerel is used as the standard, although their estimate of the quantity of casein is quite as large as the amount granted to be contained in cows' milk. The observation of the author, therefore, that human milk never contains more than about one per cent, of casein, is an original one ; for, although Henri and Chevallier, and other investigators, long ago arrived at nearly the same analytical results, yet none of them ever enunciated the belief that human milk contains always the small amount of casein, and never three or four per cent, as com- monly supposed, thereby denying the correctness of the analyses commonly accepted as standard. Much has been written of later years, and many experiments have been made, to prove the difference in chemical composition between the casein of cows' and of human milk. Kehrer made an ingenious experiment, separating the coagulum of milk from the serum by forcing the serum through a porous cell by means of an air-pump, and endeavored therefrom to prove that the difference between hu- man and cows' milk lies principally in a difference in the composition and chemical reactions of the