1. Soap and Sanitary Chemicals, 1942,18, 59; Soap, Perfumery and Cosmetics, 1942,15, 306; Oil and Soap, 1941,18, 239; all being abstracts or references to the original paper by B. Tjutjunnikov, Z Pleshkova and A. Chernichkina, Seifensieder-Ztg., 1941,68, 193–4, 205–6, 215–16, 227–8, 237.
2. See H. Kröper in Hefter-Schönfeld “Chemie und Technologie der Fette und Fettprodukte,” Band IV, page 378, published by Julius Springer, Vienna, 1939.
3. W. D. Richardson, J. Am. Chem. Soc. 1908,30, 414.
4. J. Alexander, Chem. and Met. Eng. 1918,19, 631.
5. A. de Bretteville, Jr. and J. W. McBain, The American Mineralogist 1942,27, 215.