96 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1960 



PUBLICATIONS 



Klein, William H. Interaction of growth factors with the photoprocess in 

 seedling growth. In "Photoperiodism and Related Phenomena in Plants 

 and Animals." Amer. Assoc. Adv. Sci. Publ. 55, pp. 207-215, 1959. 



MoH, C. C, and Witiirow, R. B. Non-iouizing radiant energy as an agent 

 in altering the incidence of X-ray-induced cliromatid aberrations. III. 

 Action spectrum of far-red potentiation. Radiation Res., vol. 11, pp. 18-23, 

 1959. 



WiTHBOw, Robert B. A kinetic analysis of photoperiodism. In "Photo- 

 periodism and Related Phenomena in Plants and Animals." Amer. Assoc. 

 Adv. Sci. Publ. 55, pp. 439-471, 1959. 



Wolff, John B., and Price, Leonard. The effect of sugars on chlorophyll 

 biosynthesis in higher plants. Journ. Biol. Chem., vol. 235, pp. 1603-1608, 

 1960. 



OTHER ACTIVITIES 



Dr. W. H. Klein and Dr. W. Shropshire participated in the In- 

 ternational Botanical Congress in Montreal, where Dr. Shropshire 

 presented a paper, "Action Spectra of the Light-growth and Tropic 

 Responses of Phycomyces," and Dr. Klein participated in the exec- 

 utive committee sessions of the American Society of Plant Physi- 

 ologists. Dr. Klein also attended the International Symposium on 

 Growth and Development at Purdue University, and Dr. Shropshire 

 attended the Fourth Annual Meeting of the Biophysical Society at 

 Philadelphia and a symposium at the Jolins Hopkins University in 

 Baltimore on the subject "Light and Life." 



Dr. E. Sisler, Dr. M. Margulies, L. Price, and V. Elstad attended 

 the meetings of the American Institute of Biological Sciences at 

 Pennsylvania State University, and Drs. Sisler and Margulies at- 

 tended the annual meetings of the Federation of American Societies 

 for Experimental Biology in Chicago. 



Respectfully submitted. 



Fked L. Whipple, Director. 



Dr. Leonard Carmichael, 



Secretary^ Smithsonian Institution. 



