Resistance offered by Leaves to Transpirational Water Loss. B. 



E. Livingston 1 



Review of Forest Service Investigations; Note 187 



Ridgwa}^, C. S. Occurrence of Callose in Root Hairs JIG 



Rigg, G. B. Forest Distribution in tiie San Juan Islands 177 



Root Variation in Some Desert Plants. W. A. Cannon 323 



Russell, E. J. New Text on Soils; Review 97 



Schreiner, O. and Skinner, J. J. Experimental Study of the effect 

 of Some Nitrogenous Soil Constituents on Growth. Nucleic 



Acid and its Decomposition Products 45 



Scieman, E. Recent Results in Induced jMutations; Review 123 



. Sharp, L. T. Bacteriological Studies of Old Soils 101 



Sherff , E. E. Evaporation Conditions at Skokie Marsh ] 54 



Skinner, J. J. Illustration of the Effect of Previous Vegetation on a 



Following Crop 342 



Skinner, J. J. and Schreiner, O. Experimental Study of the effect 

 of Some Nitrogenous Soil Constituents on Gro\vth: Nucleic 



Acid and its Decomposition Products 45 



Smith, G. M. Preservation of Fresh Water Chlorophyceae 219 



Soil Chemistry. F. K. Cameron; Review 286 



Starr, A. M. Anatomy of Dune Plants; Review 70 



Stoklasa, A. Influence of Ultra-Violet Raj'^s; Review 162 



Stone, G. E. Cement Aquaria 281 



Sudworth, G. B. Atlas of Pines; Note 290 



Thompson, C. H. Culture of Cacti; Note 100 



Thompson, W. P. Recent Work on Evolution in Dicotyledons. . . 183 



Toxicity of Salts. C. B. Lipman. and F. H. Wilson; Review 263 



Transeau, E. N. Vegetation of Cold Spring Harbor, Long Island 



I. The Littoral Successions 189 



Transpiration in Parasitized Leaves. H. S. Reed and J. S. Cooley; 



Review 237 



University of Tropical Agriculture; Note 187 



Vegetation of Cold Spring Harbor, Long Island. 1 The Littoral 



Successions. E. N. Transeau 189 



Vegetation of Natal. Bews, J. W.; Review 41 



Visher, S. S. South Dakota Flora; Note 128 



Yamanouchi, S. Life Historj^ of Cutleria; Review 162 



4 



