Retting Flax: Note 96 



Revegetation of Taal Volcano. F. C. Gates 195 



Roberts, Edith A. Root Haii-s; Review 29 



Robinson, B. L. Work on BrickelUa; Note 132 



Root Hairs. Edith A. Roberts; Review 29 



Rosett, J. Observations on a new type of Artificial Osmotic 



Cell 37 



Sandalwood; Note , 35 



Sauvageau, C. Life Histories of Kelps; Review 190 



Seeding Habits of Spruce as a Factor in Competition. L. S. 



Murphy 87 



Shade Trees. G. E. Stone; Note 162 



Shive, J. W., and Martin, W. H. Effect of Bordeaux Mixture on 



Transpiring Power in Tomatoes 67 



Shreve, Forrest, Physical Control of Vegetation in Rain-Forest 



and Desert Mountains 135 



Sinnott, E. W. Node of Angiosperms; Review 300 



Soil Aeration and Plant Growth. A. Howard and G. L. C. 



Howard; Review 260 



Soil Temperaturs and Plant Growth. B. D. Halsted and S. A. 



Waksman; Review 361 



Soil Temperatures as a Factor in Phytopathology. L.R.Jones.. 229 



Spoehr, H. A. Pentose Sugars in Plant Metabolism 365 



Stevenson, Matilda C. Zuni Indians; Note 133 



Strawberty Growing. S. W. Fletcher; Note 162 



Structure of Coal. E. C. Jeffrey; Review 131 



Swiss Phytogeographical Commission; Note 95 



Text Book of Genetics. E. B. Babcock; Note 396 



Text Books. W. F. Ganong; C. S. Gager; Review 93 



Thompson, W. P. Gnetales; Review 226 



Tolerance of Fresh Water by Marine Plants. W. J. V. Osterhout; 



Review 130 



Transeau, E. N. Work of; Note 340 



Transeau, E. N.; Fuller, G. D.; Weaver, J. E.; et al. Evapora- 

 tion and Succession; Review 357 



Trelease, W. Work of; Note 340 



Tropical Agriculture. E. V. Wilcox; Review 30 



Tropical Forestry; Notfe 227 



Truog's Method of Determining Carbon Dioxide. A. M. Gurjar 288 



Undescribed Prairies in Northeastern Arkansas. R. M. Harper. . . 58 



Vegetation and Climate of Colorado. W. W. Robbins; Note 193 



Vegetation of Conglomerate Rocks of Cincinnati Region. E. Lucy 



Braun \ 380 



West, G. S. Handbook on Algae; Review 334 



Whiting, A. L. Laboratory Manual of Soil Biology; Review 159 



Wilcox, E. V. Tropical Agriculture; Review 30 



Wilcox, Flora. E. W. Berry; Review 127 



Wilson, Percy. Work of; Note 228 



Working Plans for Forest Organization. A. B. Recknagel; Review 299 



