Spectrographic data of natural fats and their fatty acids in relation to vitamin A

THE observation that vitamin A concentrates yield, on treatment with sodium ethoxide, acids of which the absorption spectra exhibit characteristic fine structure [Morton, Heilbron and Thompson, 1931] has prompted us to commence a detailed investigation of the absorption spectra of natural fats and their related acids.In the present paper certain broad aspects of the problem are considered.4.0 " bOD 2.