REPORT OF THE SECRETARY 115 



PERSONNEL 



No changes have occurred in the status of the Division's per- 

 sonnel during the past year. Dr. Jack E. Myers has continued his 

 work with algae and on photosynthesis under his National Research 

 Fellowship grant. 



PAPERS PRESENTED AT MEETINGS 



Photosynthesis and fluorescence. Presented by E. D. McAlister at the Marine 

 Biological Station, Pacific Grove, Calif., and at Stanford University, Palo 

 Alto, Calif., in August 1940. 



Quantum efficiency of photosynthesis from fluorescence measurements. Pre- 

 sented by E. D. McAlister before the Physics Colloquium, George Washington 

 University, Washington, D. C, on October 23, 1940. 



Fluorescence and photosynthesis. Presented by E. D. McAlister before the 

 Philosophical Society of Washington, D. C, on October 26, 1940. 



The efficiency of photosynthesis in relation to fluorescence. Presented by 

 E. D. McAlister before the Botanical Society of America, Philadelphia, Pa., 

 December 30, 1940. 



Inhibition of first internode of Avena sativa by radiation. Presented by 

 Robert L. Weintraub before the American Society of Plant Physiologists, Phil- 

 adelphia, Pa., December 30, 1&40. 



Influence of light on the respiration of etiolated barley seedlings. Pre- 

 sented by Earl S. Johnston and Robert L. Weintraub before the American 

 Society of Plant Physiologists, Philadelphia, Pa., December 30, 1940. 



Culture conditions for Chlorella in relation to its photosynthetic behavior. 

 Presented by Jack Myers before the American Society of Plant Physiologists, 

 Philadelphia, Pa., December 30, 1940. 



Photosynthesis in past ages. Presented by E. D. McAlister before the 

 Paleontological Society of Washington in April 1941. 



PUBLICATIONS 



Chase, Flokencb Meieb. Increased stimulation of the Alga Stichococcus 



bacillaris by successive exposures to short wave lengths of the ultraviolet. 



Smithsonian Misc. Coll., vol. 99, No. 17, pp. 1-16, 1941. 

 McAlister, E. D., and Myers, Jack. The time course of photosynthesis and 



fluorescence observed simultaneously. Smithsonian Misc. Coll., vol. 99, No. 6, 



pp. 1-37, 1940. 

 McAusTER, E. D., and Myers, Jack. Time course of photosynthesis and 



fluorescence. Science, vol. 92, No. 2385, pp. 241-243, 1940. 

 McAxister, E. D., Matheson, G. L., and Sweeney, W. J. A large recording 



spectrograph for the infrared to 15m- Rev. Scientific Instr., vol. 12, No. 6, pp. 



314-319, 1941. 

 Meier, FI/jrence E. Plankton in the water supply. Ann. Rep. Smithsonian 



Inst, for 1939, pp. 393-412, 1940. 

 Weintraub, Robert L. Plant-tissue cultures. Ann. Rep. Smithsonian Inst. 



for 1940, pp. 357-368, 1941. 



Respectfully submitted. 



Earl S. Johnston, Assistant Director. 

 Dr. C. G. Abbot, 



Secretary, Smithsonian Institution. 



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