92 ANNUAL REPORT SMITHSONIAN INSTITUTION, 196 2 



where Dr. Loercher presented a paper on "The Influence of Cobalt on 

 Leaf Expansion and Yield of Oxidative Phosphorylation." 



Attending the annual meetings of the American Institute of Bio- 

 logical Sciences in August 1961 at Purdue University were L. Price, 

 M. Margulies, W. Shropshire, V. B. Elstad, W. H. Klein, L. Loercher, 

 and J. L. Edwards. Included among the papers presented to the 

 American Society of Plant Physiologists at these meetings were 

 "The Effect of Red and Far-Red Radiant Energy and Delta Amino 

 Levulinic Acid on the Lag Phase of Chlorophyll Synthesis in Bean 

 Seedlings," by E. C. Sisler, W. H. Klein, and Rebecca Gettens ; "The 

 Mode of Action of Cobalt in the Expansion of Etiolated Leaf Tissue," 

 by L. Loercher; "The Effect of Chloramphenicol on Chlorophyll 

 Formation and on Development of Photosynthetic Activity," by M. 

 Margulies; and "Negative Phototropism of Phycomyces Sporangio- 

 phores to Blue Light Stimuli," by W. Shropshire. Dr. Klein attended 

 the Executive Conunittee sessions of the American Society of Plant 

 Physiologists. 



Also in August, J. H. Harrison attended the Seminar for Scientific 

 Glassblowers held at the State University of New York. Mr. Harri- 

 son and A. H. Busch attended the 8th Annual Symposium of the Amer- 

 ican Vacuum Society held in October in Washington. 



Dr. Klein was an invited participant in the Conference on Basic 

 Mechanisms in Radiobiology, San Juan, P.R., sponsored by the Atomic 

 Energy Commission in November. 



Dr. Shropshire attended the annual meeting of the Biophysical So- 

 ciety in Washington in February 1962. In March Dr. Klein visited 

 the University of Arizona at Tucson to consult wdth Dr. Paul Damon 

 regarding carbon-dating facilities, and in April he studied newly 

 developed carbon-dating technics at Radiochemistry, Inc., at Louis- 

 ville, Ky. 



In May 1962, Drs. R. Latterell and Klein attended the lOtli Annual 

 Meeting of the Radiation Research Society at Colorado Springs, Colo. 



Dr. Shropshire visited Duke University and North Carolina State 

 College in June to consult with university scientists in the Depart- 

 ments of Biophysics and Plant Physiology. 



Also in June, Mr. Harrison and A. H. Busch attended the 7th 

 Annual Symposium of the American Scientific Glassblowers Society, 

 held in Washington, where Mr. Harrison participated as chairman of 

 the workshop committee. 



The installation of a radio-carbon dating laboratory has been ac- 

 complished, and the facility is expected to be operational by August 

 1962. Facilities have also been installed for research in the biochem- 

 istry and physiology of marine organisms. 



