The Problem of Stages in Biopoesis 53 



beginning and I hope that the suggestions I have made here may do something 

 to rouse interest in it. 



REFERENCES 



1. J. W. S. Pringle, New Biol, i6, 54, 1954. 



2. N. W. PiRiE, New Biol, 16, 41, 1954. 



3. J. D. Bernal, Proc. phys. Soc. Lond., 52, 537, 1949. 



4. J. B. S. Haldane, New Biol, 16, 12, 1954. 



5. E. Barbu & M. Joly, Discuss. Faraday Soc, 13, 77, 1953. 



6. A. Oparin, Proiskhozhdenie zhisny. Moscow, 1924. 



7. L. Pauling, Proc. nat. Acad. Sei., Wash., 37, 205, 195 1. 



8. J. Rich, J. Amer. ehem. Soc, 78, 3548, 1956. 



9. F. B. Straub, Acta physiol hung., 10, 137, 1956. 

 IG. S. OcHOA, Science, 122, 907, 1955. 



11. R. Franklin, Nature, Lond., 177, 928, 1956. 



12. D. L. D. Caspar, Nature, Lond., iTJ, 475, 1956. 



13. N. H. Horowitz, Proc. nat. Acad. Sei., Wash., 31, 153, 1945. 



14. M. E. Jones, L. Spector & F. Lipmann, J. Amer. ehem. Soc, 77, 819, 1955. 



15. S. E. Bresler (private communication). 



