292 RADIATION BIOLOGY 



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447-452. 



Warburg, O., and D. Burk (1950) The maximum efficiency of photosynthesis. Arch. 

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Warburg, O., D. Burk, and A. L. Schade (1951) Extensions of photosynthetic 

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Warburg, O., D. Burk, V. Schocken, and S. B. Hendricks (1950) The quantum 

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Warburg, O., and 11. Geleick (1951) tjber den Gewinn im Kreisprozess der Photo- 

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Warburg, O., H. Geleick, and K. Briese (1951) Weitere Steigerung des Energiege- 

 winns im Kreisprozess der Photosynthese. Z. Naturforsch., 6b: 285-292. 



(1952) tJber die Messung der Photosynthese in Carbonat-Bicarbonat- 



Gemischen. Z. Naturforsch., 7b: 141-144. 



Warburg, O., and E. Negelein (1922) tJber den Energieumsatz bei der Kohlensiiure- 

 assimilation. Z. physik. Chem., 102: 235-266. 



(1923) liber den Einfluss der Wellenlange auf den Energieumsatz bei der 



Kohlensaureassimilation. Z. physik. Chem., 106: 191-226. 



Warburg, O., and V. Schocken (1949) A manometric actinometer for the visible 

 spectrum. Arch. Biochem., 21: 363-369. 



Wassink, E. C. (1946) Experiments on the photosynthesis of horticultural plants, 

 with the aid of the Warburg method. Enzymologia, 12: 33-35. 



Wassink, E. C, and J. A. H. Kersten (1946) Observations sur le spectre d'absorption 

 et sur le role des carotenoides dans la photosynthese des diatomees. Enzymolo- 

 gia, 12: 3-32. 



Went, F. W. (1950) Photosynthetic efficiency of the tomato plant as influenced by 

 light intensity and temperature. Science, 111: 459-460. 



Whittingham, C. P. (1952) The chemical mechanism of photosynthesis. Botan. 

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Wolf, J. M., A. H. Brown, and R. Goddard (1952) An improved electrical conduc- 

 tivity method for accurately following changes in the respiratory quotient of a 

 single biological sample. Plant Physiol., 27: 70-80. 

 * Yuan, E. L. (1954) Factors influencing energy efficiency of photosynthesis in 



Chlorella. Ph.D. Thesis, Univ. Wisconsin, Madison. 

 *Yuan, E. L., R. W. Evans, and F. Daniels (1955) Energy efficiency of photo- 

 synthesis in Chlorella. Biochem. et Biophys. Acta, 17: 185-191. 



Manuscript received by the editor Jidy 15, 1952 



