INDEX 



549 



Rogers, L. A. *Drying by the freez- 

 ing method. 197. 



RoHWER, S. A. *Sawflies and their 

 relation to forestry. 175. 



Rosa, E. B. *Electrolysis in plain and 

 reinforced concrete. 361. 



The function of research in the 



regulation of natural monopolies. 

 201. 



The silver voltameter. III. 40. 



Rose, J. N. *A portrait of Linnaeus. 

 92. 



Safford, W. E. Chelonocarpus, a 

 new section of the genus Annona, 

 with descriptions of Annona sclero- 

 derma and Annona testudinea. 

 103. 



Pseudannona, a new genus of 



Annonacae from the Mascarene 

 Islands; together with notes on 

 Artabotrys uncinatus and its syn- 

 onymy. 16. 



Salant, W. *Concerning the pharma- 

 cological action of the tartrates 

 197. 



Sanstrom, J. W. *Atmospheric stud- 

 ies. 110. 



ScHALLER, Waldemar T. The calcu- 

 lation of mineral formulas. 97. 



*The crystallography of natram- 



blygonite. 152. 



Hodgkinsonite, a new mineral 



from Franklin Furnace, N. J. 474. 



Immense bloedite crystals. 75. 



The refractive indices of strengite 



249. 



*A study of the tourmaline group. 



151. 



ScHREiNER, Oswald. *The chemistry 

 of steam-heated soils. 256. 



*Lawn soils and lawns. 254. 



*Problems of soil fertility. 260. 



Seidell, A. *Seasonal variation in 

 the iodine content of the thyroid 

 gland. 131. 



Shantz, H. L. *The water require- 

 ments of plants. 536. 



Shaw, E. W. *Mud lumps at the mouth 

 of the Mississippi. 343. 



Shaw, Harry B. *Control of seed pro- 

 duction in beets. 264. 



Shear, C. L. *Studies of fungous par- 

 asites belonging to the genus 

 Glomerella. 194. 



Sheldon, R. E. *The sense of smell in 

 fishes. 295. 



Shepherd, E. S. Water and the mag- 

 matic gases. 457. 



Shorey, E. C. *Recent work on the 

 chemical composition of humus. 

 260. 



*Some organic soil constituents. 



256. 



SiEVERS, Arthur F. *A preliminary 

 study of the forced curing of lem- 

 ons as practiced in California. 25. 



SiNGEWALD, Joseph T., Jr. *Rela- 

 tions of ilmenite to magnetite in 

 titaniferous magnetite. 199. 



Skeels, H. C. *Method of types ap- 

 plied to the nickernut. 379. 



Skinner, J. J. *Beneficial effect of 

 creatinine and creatine on growth. 

 254. 



*City street sweepings as a ferti- 

 lizer. 254. 



*Effect of asparagin on absorption 



and growth in wheat. 255. 



*Effect of histidine and arginine as 



soil constituents. 253. 



*Influence of phosphate on the 



toxic action of cumarin. 253. 



*Lawn soils and lawns. 254. 



*Physiological action of certain or- 

 ganic soil constituents. 261. 



Smith, Clayton. *Concerning the phar- 

 macological action of the tar- 

 trates. 197. 



Smith, Hugh M. *Recent progress in 

 the study and culture of the com- 

 mon eel. 268. 



SosMAN, R. B. Data on the intrusion 

 temperature of the Palisade dia- 

 base. 389. 



'■ Abstracts. 



