550 



INDEX 



*Densities at high temperatures. 



521. 



*La mesure des temperatures 61e- 



vees'par le thermometre a gaz. 501. 



*The physical chemistry of Seger 



cones. 501. 



Spencer, Arthur C. Chalcocite de- 

 position. 70. 



Spurr, J. E. *Study of a contact 

 metamorphic ore-deposit. The Do- 

 lores mine, at Matehuala, S. L. P. 

 Mexico. 116. 



Stanton, Timothy W. Some varia- 

 tions in upper Cretaceous strati- 

 graphy. 55. 



Steiger, George. Note on the analy- 

 sis of water from a deep well in 

 Pennsylvania. 423. 



Stockberger, W. W. *Some effects of 

 refrigeration on sulfured and unsul- 

 fured hops. 120. 



Stose, George W. *Apishapa, Colo., 

 Folio. 117. 



*Geology of the salt and gypsum 



deposits of southwestern Virginia. 

 117. 



SxTLLivAN, M. X. *Biochemical fac- 

 tors in soils. 252. 



■ *Manganese as a fertilizer. 255. 



*Origin of certain organic soil 



constituents. 260. 



*Studies in soil catalysis. 255. 



SwANTON, John R. *The Creek con- 

 federacy. 306. 



SwiCK, Clarence H. *Triangulation 

 along the west coast of Florida. 

 500. 



Swingle, Walter T. The botanical 

 name of the lime, Citrus auranti- 

 folia. 463. 



Chaetospermum, a new genus of 



hard-shelled citrous fruits. 99. 



*Feroniella, genre nouveau de la 



tribu des Citreae, fonde sur le F. 

 oblata, espece nouvelle de I'lndo- 

 Chine. 532. 



*Le fruit m<ir et les jeunes semis 



de r aeglopsis chevalieri. 504. 



Tassin, Wirt. *E,ate of cooling in the 

 green and its influence on the phys- 

 ical properties of annealed metals. 

 263. 



Tenny, L. S. *Knot of citrus trees 

 caused by Sphaeropsis tumefa- 

 ciens. 29. 



Tillyer, E. D. Determination of the 

 zonal variation of the equivalent 

 focus. 481. 



Tittmann, O. H. *Last meeting of the 

 International Geodetic Conference 

 at Hamburg. 48. 



ToLMAN, L. M. *Study of changes 

 taking place in the conversion of 

 cider into vinegar. 130. 



Tracy, S. M. *Rediscovery of Oeno- 

 thera grandiflora. 175. 



True, Rodney H. *Absorption and 

 excretion of salts by roots, as in- 

 fluenced by concentration and 

 composition of culture solutions. 

 I. Concentration relations of dilute 

 solutions of calcium and magne- 

 sium nitrate to pea roots. 26. 



*A preliminary study of the forced 



curing of lemons as practiced in 

 California. 25. 



Tuttle, F. H. The determination of 

 phosphorus in steels containing 

 vanadium. 249. 



Van Orstrand, C. E. The determina- 

 tion of the order of agreement be- 

 tween observation and theory in 

 mineral analyses. 223. 



Tables of the exponential function. 



345. 



Vaughan, Thomas Wayland. *Re- 

 marks on the geology of the Ba- 

 hama Islands, and on the forma- 

 tion of the Floridian and Bahaman 

 oolites. 302. 



ViNAL, G. W. The silver voltameter. 

 III. 40. 



* Abstracts. 



