The authors are grateful to the reviewers, including Professors Bohren and Albrecht, for their advice and criticism. Their detailed commentary on our manuscript helped us in clarifying the issues that are discussed. The insights of Dr. Pasmanter on the nature of turbulent mixing, which he kindly shared with us, were also much appreciated.
Emden, R., 1926: Thermodynamik der Himmelskörper. Astronomie, B.Encyklopädie der Mathematischen Wissenschaften, VI, 2, K. Schwarzschild and S. Oppenheim, Eds., Teubner, 373–532.