1. Bouner, R. E., Brewster, M. D., MacGregor, W., Brauder, J. D., and Hunter, R. H.; Atlas Powder Company Bulletin, November 15, 1943.
2. Bradshaw, G. B., and Meuly, W. C. (to E. I. duPont de Nemours & Company) U. S. Patent 2,271,619 (February 3, 1942).
3. Burrell, Harry; Oil and Soap,21, 206–11 (1944).
4. Tsnchiya, T., and Ishikawa, T. J.; Soc. Chem. Ind., Japan36, 230–3 (1933).
5. Unpublished data.