The Virginia (Richmond) Meeting 179 



"Insect Populations*' (5 papers). American Association of Economic 

 Entomologists, Entomological Society of America and Ecological Society 

 of America. 



"The Effects of Water-Soluble * Irowth- Promoting Substances on Plants" 

 (3 papers). Botanical Society of America. 



"Influence of Low Temperature on Plants" (5 papers). Botanical So- 

 ciety of America. 



"The Structure of Chloroplasts" (3 papers). Botanical Society of 

 America. 



"The Physiology and Diseases of Cotton'' (9 papers). American Society 

 of Plant Physiologists, American Phytopathological Society and Botanical 

 Society of America, Physiological Section. 



"The Teaching of Plant Physiology" (5 papers). American Society of 

 Plant Physiologists. 



"Contributions of the Higher Animals to an Understanding of Human 

 Biology" (3 papers). American Society of Naturalists, American Society 

 of Zoologists, Botanical Society of America, Genetics Society of America 

 and Section on Anthropology. 



"Some Leading Problems of Limnology with Special Reference to Lakes" 

 (9 papers). Limnological Society of America. Publication No. 10 of the 

 Association entitled "Problems of Lake Biology." 1939. 



"Research in Audition: The Next Steps" (5 papers). Section on Psy- 

 chology. 



"Significance of the Pareto Distribution" (3 papers). Section on Social 

 and Economic Sciences. 



"Centenary of the Cell Theory" (7 papers). Section on Historical and 

 Philological Sciences, Section on Zoological Sciences and Section on Botan- 

 ical Sciences. Reprinted from the American Naturalist by the Jaques Cattell 

 Press. 1940. 



"Mental Health" (94 papers). Section on Medical Sciences. Publication 

 Xo. 9 of the Association. 1939. 



"Dental Caries : Diet and Nutrition ; Bacterial ; Heredity ; Distribution ; 

 Chemical; Tooth Structure; Blood and Saliva" (22 papers). Subsection 

 on Dentistry. 



"Glycols" (5 papers). Subsection on Pharmacy. 



"Land Use" (3 papers). Section on Agriculture and Section on Social 

 and Economic Sciences. 



"Economic Effects on Education" (4 papers). Section on Education. 



"Problems of Interpretation of Educational Research" (7 papers). Sec- 

 tion on Education. 



"Problems in Reading" (4 papers). Section on Education. 



"New Developments in Education" (5 papers). Section on Education. 



"Ferns of Virginia and Neighboring States." American Fern Society. 



