This section is from the book "Materia Medica Pharmacy, Pharmacology And Therapeutics", by W. Hale White. Also available from Amazon: Materia Medica Pharmacy, Pharmacology And Therapeutics..
The yolk of the egg of Gallus Bankiva, var. do-mestica Temminck (class Aves; order Gallinae).
Java and Cochin China; domesticated.
1) Vitellin, 16 per cent. (2) Fat, 30 per cent. (3) Inorganic Salts, Cholesterin, Lecithin, and coloring matter.
Glyceritum Vitelli. - See Glycerin, p. 608.
Yolk of egg is used to make emulsions and is nutritive and emollient.