LIGHT ABSORPTION OF PHOTOSYNTHESIZING CELLS 67 



other substances) as a function of a certain parameter, such as the 

 time after onset of illumination or of the intensity of the exciting 

 light. These data may be useful in the elucidation of the mechanism 

 of photosynthesis. 



Examples of the procedures outlined above can be found in refer- 

 ences 1 and 4 to 9, and in articles in this volume. 



References 



1. Duysens, L. N. M., "Transfer of excitation energy in photosynthesis." Doctoral 



thesis, Utrecht, 1952. 



2. Chance, B., Smith, L., and Castor, L., Biochim. et Biophys. Acta, 12, 289 



(1953). 



3. Chance, B., and Legallais, V., Rev. Sci. Instr., 22, 634 (1951). 



4. Lundegardh, H., Physiol. Plantarum, 7, 375 (1954). 



5. Duysens, L. N. M., Carnegie Institution of Washington Yearbook, 62, 154 



(1953). 



6. Witt, H. T., Z. physik. Chem., 4, 120 (1955). 



7. Duysens, L. N. M., Science, 120, 353 (1954). 



8. Duysens, L. N. M., Science, 121, 210 (1955). 



9. Chance, B., and Smith, L., Nature, 175, 803 (1955). 



