1. Baker, B. H.: Geology of the Magadi area. Geol. Surv. Kenya, Rept. 42, 81 p. (1958).
2. ? Geology of the area south of Magadi. Geol. Surv. Kenya, Rept. 61, 27 p. (1963).
3. Baker, C. L., L. R. Jue, and J. H. Wills: The system Na2O-SiO2?H2O at 50, 70 and 90°. J. Am. Chem. Soc. 72, 5369 (1950).
4. Bradley, W. H.: The varves and climate of the Green River epoch. U.S. Geol. Surv. Profess. Papers 158-E, 87?110 (1929).
5. ?, and H. P. Eugster: Geochemistry and paleolimnology of the trona deposits and associated authigenic minerals of the Green River Formation of Wyoming. U.S. Geol. Surv. Profess. Papers 496-B (in press).