Comment

Comment: Oman Chronostratigraphy: (Comment on “Geochronologic Constraints on the Chronostratigraphic Framework of the Neoproterozoic Huqf Supergroup, Sultanate of Oman” by Samuel A. Bowring, John P. Grotzinger, Daniel J. Condon, Jahandar Ramezani, Mark J. Newall and Philip A. Allen, American Journal of Science, v. 307, p. 1097–1145.)

Comment: The Thermodynamics and Kinetics of Microbial Metabolism: (Comment on “Thermodynamics and Kinetics of Microbial Metabolism” by Quesheng Jin and Craig Bethke, American Journal of Science, v. 307, p. 643–677.)

Comment: Supersaturation in Binary Solid solution-Aqueous Solution Systems: (Comment on “Crystallization Kinetics in Binary Solid Solution –aqueous Solution Systems” by Alexander G. Shtukenberg, Yurii O. Punin and Pavel Azimov, American Journal of Science, v. 306, p. 553–574.)