Sophia Hennion Eckerson 



A.B., Smith College, Northampton, Massachusetts, 1905; A.M., 1907; Ph.D. (Plant 

 Physiology and Plant Morphology), Chicago, September, 1911 



ASSISTANT IN PLANT PHYSIOLOGY, THE UNIVERSITY 

 OF CHICAGO, CHICAGO, ILLINOIS 



Fellow in Botany, Smith College, Northampton, Massachusetts, 1905-06; Demon- 

 strator, 1906-07; Assistant, 1907-09; Assistant in Plant Physiology, The University of 

 Chicago, 1911—. 



Member: Amer. Assoc. Adv. Sci. (Fellow), Bot. Soc. Amer., Women's Agric. and Hort. 

 Assoc. 



PUBLICATIONS 



The physiological constants of plants commonly used in American botanical lab- 

 oratories. I. Chlorophyll spectrum. Bot. Gaz. 40: 302-305. 1905. — II. Root pres- 

 sure and exudation. Ibid. 46: 50-54. 1908. — III. The number and size of stomata. 

 Ibid. 46: 221-224. 1908. — IV. On -the demonstration of the formation of starch in 

 leaves. Ibid. 48: 224-228. 1909. — A physiological and chemical study of after- 

 ripening. Ibid. 55:286-299. 1913.— Thermotropism of roots. Ibid. 58:254-263. 

 1914. 



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