316 PLANT PHYSIOLOGY 



Freeland, R. O, Effect of transpiration upon the absorption and dis- 

 tribution of mineral salts in plants. Ohio State Univ. Abstract Disserta- 

 tions Ph.D., 17 : 83-90, 1935. 



Freeman, G. F. A method for the quantitative determination of trans- 

 piration in plants. Botan. Gaz., 46: 118-129, 1908. 



Harris, J. A., R. A. Gortner, W. F. Hoffmann, and A. T. Valentine. 

 Maximum values of osmotic concentration in plant tissue fluids. 

 Proc. Soc. Exp. Biol. Med., 18: 106-109, 1921. 



, , , J. V. Lawrence and A. T, Valentine. The 



osmotic concentration, specific electrical conductivity, and chloride 

 content of the tissue fluids of the indicator plants of Tooele Valley, 

 Utah. Jour. Agr. Res., 27: 893-924, 1924. 



Harvey, R. B. Tracing the transpiration stream with dyes. Am. Jour. 

 Botany, 17: 657-661, 1930. 



. Use of dyes for the localization of transpiration, over the leaf 



surface. Ecology, 11 : 233-235, 1930. 



. The relative transpiration rate at infection spots on leaves. 



Phytopathology, 20: 359-362, 1930. 

 Hedgcock, G. The relation of the water content of the soil to certain 



plants, principally mesophytes. Botan. Survey Neb., Vol. 6. "Studies 



in the Vegetation of the State," 2 : 5-79, 1902. 

 Heinicke, a. J. A method for studying the relative rates of transpiration 



of apple leaves and fruits. Proc. Am. Soc. Hort. Sci., 26 (1929): 312- 



314, 1930. 

 Hungate, R. E. The cohesion theory of transpiration (illus.). Plant 



Physiol, 9: 783-794, 1934. 

 Iljin, V. S. Die Regulierung der Spaltoffnungen im Zusammenhang mit 



der Veranderung des osmotischen Druckes. Beibl. Botan. Centr., 



Abt. 1, 32: 15-35, 1914. 

 . tJber den Einfluss des Welkens der Pflanzen auf die Regulierung 



der Spaltoffnungen. Jahrb. wiss. Botanik, 61 : 670-697, 1922. 

 . tJber die Austrocknungsfiihigkeit des lebenden protoplasmas 



der vegetativen Pflanzenzellen. Jahrb. wiss. Botanik, 66: 947-964, 



1927. 

 Kearney, T. H., and H. L. Shantz. The water economy of dryland 



crops. U. S. Dept. Agr. Year Book, 10: 351-362, 1911. 

 Kiesselbach, T. Transpiration as a factor in crop production. Neb. 



Agr. Exp. Sta. Res. Bull. 6, 1916. 

 Knight, R. C. The interrelations of stomatal aperture, leaf water content, 



and transpiration rate. Ann. Botany, 31: 221-240, 1917. 

 -. Further observations on the transpiration, stomata, leaf water 



content, and wilting of plants. Ann. Botany, 36: 361-383, 1922. 

 Krasnosselsky-Maximov, T. a. Daily variations in the water content 



of leaves. Trav. jard. botan. Tiflis, 19: 1-22, 1917. 

 . Untersuchungen liber Elastizitat der Zellmembran. Ber. botan. 



Ges., 43: 527-537, 1925. 

 Livingston, B. E. The relation of desert plants to soil moisture and to 



evaporation. Carnegie Inst. Pub., 50: 1-77, 1906. 

 . Relative transpiration in cacti. Plant World, 10: 110-114. 



