1. Burch, C. R., Nature, 122, 729 (1928).
2. “Meta- Poly Phenyl Ethers: Synthetic Lubricants of the Future”, Hamman, W. C., and Blake, E. S., presented at the Boston meeting of the American Chemical Society (April 1959).
3. Bayard, R. T., and Alpert, D., Rev. Sci. Instr., 21, 571 (1950).
4. Newell, H. E., Science, 131, 385 (1960).