Transpiration as a Factor in Crop Production. 
11 
TABLE PAGE 
77. Summary showing relation of ash content of Hogue's 
Yellow Dent corn plants to transpiration and the 
moisture content of soil. Average for 1913 and 
1914 180 
78. Relation of ash content of corn plants to transpiration 
and size of potometers. 1914 181 
79. Relation of ash content to transpiration, variety, and 
kind of crop. 1914 183 
80. Summary of histological leaf measurements of corn 
and sorghums grown in the acclimatization and 
variety tests in potometers. 1914 185 
81. Summary of relation of varying degrees of soil mois- 
ture and of manure to the number of stomata, 
growth, and water requirements of corn. 1914 186 
82. Summary of relation of different degrees of soil 
fertility to number of stomata, growth, and water 
requirements of corn. 1914 187 
83. Summary of stomatal and epidermal relationships 188 
