LITERATURE CITED. 



ABEL, J. J., L. G. ROWNTREE, and B. B. TURNER. 



1914. On the removal of diffusible substances from the circulating blood of living animals 



by dialysis. Jour. Pharmacol. and Exp. Therap. 5: 275-316. 

 BERKELEY, EARL OF, and E. G. HARTLEY. 



1906. On the osmotic pressure of some concentrated aqueous solutions. Trans. Roy. Soc 



London 206A: 481-507. 

 BIGELOW, S. L., and A. GEMBERLING. 



1907. Collodion membranes. Jour. Amer. Chem. Soc. 29: 1576-89. 

 BOVIE, W. T. 



1910. Effects of adding salts to the soil on the amount of nonavailable water. Bull. Torr. 



Bot. Club 37: 273-92. 

 CALDWELL, J. S. 



1913. The relation of environmental conditions to the phenomenon of permanent wilting 



in plants. Physiol. Res. 1 : 1-56. 

 CAMERON, F. K., and F. E. GALLAGHER. 



1908. Moisture content and physical condition of soils. U. S. Dept. Agric., Bur. Soils 



Bull. 50. 



FlNDLAY, A. 



1913. Osmotic pressure. London. 

 FREE, E. E. 



1912. Studies in soil physics. Plant World 14: 29-39, 59-66, 110-19, 164-76, 186-90. Also 



reprinted, repaged. Tucson. 1912. 

 LIVINGSTON, B. E. 



1906. The relation of desert plants to soil moisture and to evaporation. Carnegie Inst. 



Wash. Pub. 50. Washington. 



1909. Present problems in physiological plant ecology. Amer. Nat. 43' 369-77. The 



essentials of this paper appeared also, under the same title, in Plant World 12: 41-6. 

 1909. 



1911. The relation of the osmotic pressure of the cell sap in plants to arid habitats. Plant 



World 14: 153-64. 



1912. Present problems in soil physics as related to plant activities. Amer. Nat. 46: 



294-301. 



1913. Osmotic pressure and related forces as environmental factors. Plant World 16: 



165-76. 

 LIVINGSTON, B. E., and W. H. BROWN. 



1912. Relation of the daily march of transpiration to variations in the water content of 



foliage leaves. Bot. Gaz. 53: 311-30. 

 LIVINGSTON, B. E,, and L. A. HAWKINS. 



1915. The water relation between plant and soil. The first paper of the present publication. 

 MATHEWS, J. H. 



1910. Osmotic experiments with collodion membranes. Jour. Phys. Chem. 14: 281-91. 

 MORSE, H. N., W. W. HOLLAND, E. G. ZIES, C. N. MYERS, W. M. CLARK, and E. E. GILL. 



1911. The relation of osmotic pressure to temperature. Part V. The measurements. 



Amer. Chem. Jour. 45: 554-603. 



OVERTON, J. B. 



1911. Studies on the relation of the living cells to the transpiration and sap-flow in Cyperus. 



Bot. Gaz. 51: 28-63, 102-20. 

 POWELL, C. W. R. 



1914. Viscosity of sugar solutions. Jour. Chem. Soc. 105: 1-23. 

 RENNER, O. 



1911. Experimentelle Beitrage zur Kenntnis der Wasserbewegung. Flora 103: 171-247. 



1912. (1) Versuche zur Mechanik der Wasserversorgung. 1. Der Druck in den Leitungs- 



bahnen von Freilandpflanzen (Vorlaufige Mitteilung). Ber. deutsch Bot. 

 Ges. 30: 576-80. 



(2) Versuche zur Mechanik der Wasserversorgung. 2. Ueber Wurzeltatigkeit (Vor- 



laufige Mitteilung). Ber. deutsch. Bot. Ges. 30: 642-8. 



(3) Ueber die Berechnung des Osmotischen Druckes. Biol. Centralbl. 32: 486-504. 

 SHIVE, J. W., and B. E. LIVINGSTON. 



1914. The relation of atmospheric evaporating power to soil moisture content at permanent 



wilting in plants. Plant World 17: 81-121. 

 SMITH, G. M. 



1913. The use of collodion membranes for the demonstration of osmosis. Bot. Gaz. 56: 



225-9. 

 WHITNEY, M., and F. K. CAMERON. 



1903. The chemistry of the soil as related to crop production. U. S. Dept. Agric., Bur. 

 Soils Bull. 22. 



84 



