678 



INDEX 



A direct-reading device for use in 



computing characteristics of va- 

 cuum tungsten lamps. 453. 



Snyder, J. O. Notes on some fishes 

 collected by Dr. Mearns in Colorado 

 River. 263. 



SoSMAN, R. B. A vacuum furnace for 

 the measurement of small disso- 

 ciation pressures. 277. 



Dissociation of calcium carbonate 



below 500°C. 563. 



Reduction of iron oxides by plati- 

 num, with a note on the magnetic 

 susceptibility of iron-bearing plat- 

 inum. 293. 



Two subordinate types of pris- 

 matic structure. 490. 



Types of columnar structure in ig- 

 neous rocks. 490. 



Spencer, J. W. Results of recent 

 soundings at Niagara, and their 

 interpretation. 406. 



Standley, Paul C. Application of 

 the generic name Achyranthes. 72. 



*Flora of New Mexico. 522. 



New genus of Chenopodiaceae, 



from Arizona. 57. 



North American tribes and genera 



of Amaranthaceae. 391. 



Notes on Orthopterygimn huaucui. 



628. 



A remarkable new geranium from 



Venezuela. 600. 



Stebinger, Eugene. *Montana group 

 of northwestern Montana. 19. 



Stephenson, L. W. *Cretaceous de- 

 posits of the eastern Gulf region, 

 and species of Exogyra from the 

 eastern Gulf region and the Caro- 

 linas. 24. 



Stevens, N. E. The genus Endothia. 

 650. 



Stone, R. W. *Guidebook of the 

 Western United States. Part B, 

 the overland route. 580. 



Stose, G. W. Mechanics of a cross 

 fault in the northern Appalachi- 

 ans. 486. 



Stuntz, S. C. Bamboo possibilities 

 in America. 231. 



Swann, W. F. G. Atmospheric-electric 

 work of the Department of Terres- 

 trial Magnetism. 138. 



Normal electric field of the Earth. 



639. 



*0n certain matters relating to the 



theory of atmospheric-electric 

 measurements. 13. 



*0n certain new atmospheric-elec- 

 tric instruments and methods. 12. 



Swanton, John R. Ethnologic fac- 

 tors in international competition. 

 336. 



Institutional marriage. 219. 



Swingle, Walter T. Early history 

 of physiological and plant breeding 

 work in the Department of Agri- 

 culture. 188. 



Merope angulata, a salt-tolerant 



plant related to Citrus, from the 

 Malay Archipelago. 420. 



^Microcitrus, a new genus of Aus- 

 tralian citrous fruits. 569. 



A new genus, Fortunella, compris- 

 ing four species of kumquat or- 

 anges. 165. 



TowNSEND, Chas. Haskins. *The por- 

 poise in captivity. 99. . 



TowNSEND, Charles H. T. Correc- 

 tion of the misuse of the generic 

 name Musca, with description of 

 two new genera. 433. 



New generic name for the screw- 

 worm fly. 041. 



Two years' investigation in Peru 



of verruga and its insect trans- 

 mission. 448. 



Stages in the asexual cycle of 



Bartonella bacilliformis, the path- 

 ogenic organism of verruga. 062. 



'Abstracts. 



