118 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1939 



PUBUOATIONS 



Weintbaub, Kobeet L. An assay metliod for growth-promoting substances uti- 

 lizing straight growth of the Avena coleoptile. Smithsonian Misc. Coll., vol. 

 97, No. 11, pp. 1-10, 1938. 



MoAlisteb, E. D. The chlorophyll-carbon dioxide ratio during photosynthesis. 

 Journ. Gen. Physiol., vol. 22, No. 5, pp. 613-636, 1939. 



Reid, Maey E. and Weintbaub, Robert L. Synthesis of ascorbic acid in excised 

 roots of the white moonflower. Science, vol. 89, No. 2321, pp. 587-588, 1939. 



Eespectfully submitted. 



Earl S. Johnston, 



Assistant Director. 

 Dr. C. G. Abbot, 



Secretary, Smithsonian Institution. 



