Excerpt from Lecithin and Allied Substances: The Lipins

IN the present monograph an attempt has been made to present the subject of the lipins in as simple a form as the state of our knowledge permits. The task has been a difficult one, owing chie¿y to the chaotic state of the literature deal ing with these bodies, the loose manner in which the term lipoid has been used has also added not a little to the general confusion. A good deal of space has been given to a description of such alleged lipin substances as protagon and jecorin, it was felt that a detailed discussion of these bodies was necessary in order that the reader might fully appreciate the very insecure and inconclusive evidence on which their existence as chemical entities had been based.

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