Key points are not available for this paper at this time.
in the serum proteins of normal individuals. Biochem. J. 71:585-587. WAKE, D. B. 1966. Comparative osteology and evolution of the lungless salamanders, family Plethodontidae. Mem. S. Calif. Acad. Sci. 4: 1-111. ZUCKERKANDL, E. AND L. PAULING. 1965. Evolutionary divergence and convergence in proteins. In: Evolving genes and proteins. V. Bryson and H. J. Vogel, eds., pp. 97-166. Academic Press, New York.
Heatwole et al. (Sat,) studied this question.