Skottsberg, Carl. Vegetation of Southern South America; 



Review 55 



Smith, E. F. Tumor Growth in Crown Gall; Review 56 



Solution and Fixation in Biocolloids and Plant Tissues. D. T. 



MacDougal and H. A. Spoehr 129 



Some Factors in Research. B. M. Duggar 277 



Spalding, V. M. H. S. Reed 14 



Spoehr, H. A. Sugar Metabolism in Cacti; Review 308 



Spratt, Ethel R. Root Tubercles; Review 250 



Sugar Metabolism in Cacti. H. A. Spoehr; Review 308 



Sunlight and its Measurement. H. E. Pulling 151, 187 



Taylor, G. Rainfall and Plant Distribution in Australia; Review. 19 

 Thermo-Electric Method for Leaf Temperature. Edith B. 



Shreve 100 



Transeau, E. N. Science of Plant Life; Review 248 



Tumor Growth in Crown Gall. E. F. Smith; Review 56 



Tuttle, G. M. Starch in evergreens; Note 218 



Utility of Soil Surveys; R. L. Pendleton; Review 272 



Vegetation at Cape Breton. G. E. Nichols; Review 145 



Vegetation of Washington and Idaho. J. E. Weaver; Review.... 216 

 Vegetation of Southern South America. C. Skottsberg; Review. 55 



Visher, S. S. Geography of South Dakota; Note 312 



Water Content and Temperature in Diastase Formation in Barley. 



W. E. Pickler . . 221 



Water Requirement and Adaptation in Equisetum. Louise 



Dosdall 1,29 



Weaver, J. E. Ecology of Roots; Review 344 



Weaver, J. E. Vegetation of Washington and Idaho; Review.... 216 



Wells, B. W. Inflorescence of Allium; Note 251 



Wood Pulp statistics; Note 218 



