732 



William Vidaver 



The apparent lack of the pre-a transient in Porphyra may be 

 real and therefore suggests a process of oxygen evolution differ- 

 ent from that of green or brown algae. On the other hand it is 

 possible that the experimental treatment did not succeed in iso- 

 lating the transient from the rest of the induction response, 



REFERENCES 



1. Blinks, L. R. , unpublished data. 



2. Evans, A. G. , and S. D. Hamann, Energy and entropy changes of 

 organic reactions, Trans . Farad . Soc . . 47, 25-34 (1951). 



3. Evans, M. G. , and M. Polyani, Application of the transition 

 state method to the calculations of reaction rate velocities, 

 especially in solution. Trans . Farad . Soc., 31, 875-894 (1935) 



4. Fork, D. C. , Factors affecting oxygen evolution from Swiss 

 chard chloroplasts , Carnegie Inst , of Wash . Year Book 61, 

 334-343 (1962). 



5. Guthe, K. F. , Myosin ATPase activity in relation to tempera- 

 ture and pressure, in Influence of Temperature on Biological 

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 D. C, 1957). 



6. Johnson, F. H. , H. Eyring , and M. Polissar, The Kinetic Basis 

 of Molecular Biology . (Wiley, New York, 847 pp., 1954). 



7. Vidaver, W. E. , Hydrostatic Pressure Effects on Photosynthe - 

 sis . Thesis, Stanford University (1963). 



