488 LIGHT AND LIFE 



prising first chlorophyll-haeni adducts, and then more complex sys- 

 tems, should be studied using the techniques developed recently 

 for following fast reactions, such as those based on relaxation method- 

 ology, flash spectrophotometry, etc. The reactions involved which 

 occur in times less than milliseconds fill the present gap between the 

 fast physical processes initiated by quantum absorption in the con- 

 densed organized aggregates of photosynthetic systems and the rela- 

 tively slow biochemical and physiological reactions leading to cell 

 growth. 



REFERENCES 



1. Anion, U. I., YVhatley, F. R., and Allen, M. B., /. Am. Cliem. Sue, 76, 6324 



(1954). 



2. Brill, A. S., Ehienbeig, A., and den Hartog, H., Huxhiiii. ct Biopliys. Actu 



(in press, 1%()). 



3. Cahill. A. E., and Taiibe, H., J. Am. Chem. Sac, 73, 2847 (1951). 



4. Calvin, M., this symposium. 



5. Chance, B., and Nishinuua, M., Froc. \'at. Acad. .Sri. U. S., 46, 19 (1960). 



6. Chance, B., and Olson, J. M., Arch. Biochem. Biopliys. (in press, 1960). 



7. Dwyer, F. I'., Symposium on Haematin Enzymes, Canberra. Australia (1959), 



I'ergamon Press, London (in press). 



8. Dwyer, F. P., and Gyarfas, E. C, Nature, 166, 1181 (19.50). 



9. Frenkel, A. W., /. Am. Chem. Soc, 76. 5,568 (1954). 



10. George, P.. and Irvine, D. H., Biochem. J., 58, 188 (1954). 



11. Gibson, J. F., Ingram, D. J. E., and Nichols, P., Nature. 181, 1398 (1958). 



12. Hill, R., Proc. Roy. Soc. London B, 127, 192 (19.39). 



13. Hill, R., Proc. 3rd Intern. Cong. Biochem., Brussels, p. 225, .\cademic Press. 



New York (1958). 



14. Kamen, M. D., in Enzymes: Units of Biological Structure and Function, 



(O. H. Gaebler, ed.), p. 483, Academic Press, New York (1956). 



15. King, N. K., and VVinfield, M. E., Au.stral. ,/. Chem.. 12, 47 (1959). 



16. Newton, J. W., and Newton, G. A., Arch. Biochem. Biopliys.. 71, 250 (1957). 



17. Olson, J. M., and Chance, B., Biochim. et Biopliys. Acta. 28, 27 (1958). 



18. San Pietro, A., and Lang, H. M., ./. Biol. Chem., 231. 211 (19.58). 



19. Taube, H., Advances in Inorg. Chem. (and) Radiochem.. 1, 1 (19.59). 



20. Theorcll, H., and Ehrcnberg, .\., Arch. Biochem. Biopliys., 4L 442 (19.52). 



