1. AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS BULLETIN 41: 1854 (1957).
2. Baker E. G. symposium paper presented at a meeting of the American Chemical Society held in Dallas Texas 8-13 Apr (1956).
3. COMMUNICATION
4. EMERY, K.O., BULLETIN OF THE AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS 36: 735 (1952).
5. EVANS, E. D., ANALYTICAL CHEMISTRY 29: 1858 (1957).