INDEX 



545 



* Report on a collection of plants 



from the Pinacate region of Sonora, 

 162 



* Three new plants from Alberta, 



162 



*Sterrett, D. B. Emeralds in North 

 Carolina, 360 



*Stone, R. W. Coal near the Black 

 Hills, Wyoming — South Dakota, 

 389 



* Classification of mineral lands, 



361 



*Stose, G. W. Pawpaw -Hancock, 

 Md., W. Va., Pa., folio, 410 



* Salt and gypsum deposits in West 



Virginia, 36 



*Sudworth, G. B. Columbian mahog- 

 any: Its characteristics and use as 

 a substitute for true mahogany 

 . . . With a description of the 

 botanical characters of Cariniana 

 pyriformis, 16 



*Sullivan, M. X. A beneficial organic 

 constituent of soils: Creatinine, 

 320 



* Origin of creatinine in soils, 321 



*Swartz, C. K. Pawpaw-Hancock, 

 Md., W. Va., Pa., folio, 410 



Swingle, W. T. Clastotypes, clono- 

 types, and spermotypes, means for 

 multiplying botanical type speci- 

 mens, 344 



* Le genre Balsamocritrus et un 



nouveau genre voisin, Aeglopsis, 

 353 



* Maturation artificielle lente de la 



datte Deglet-nour, 493 



Merotypes as a means of multiply- 

 ing botanical types, 220 



* Observations sur les quelques es- 



peces indochinoises des genres At- 

 lantia et Glycosmis, 390 



* Studies in European herbaria, 211 



*Sylvester, R. Criminal character- 

 istics, 469 



*Tarr, R. S. Earthquakes at Yakutat 

 Bay, Alaska, in Sept., 1899. 421 



*Thiessen, R. Constituents and gen- 

 esis of coals, 232 



*Townsend, C. H. Northern elephant 

 seal, 269 



*Udden, J. A. Geology and mineral 

 resources of the Peoria quadrangle, 

 440 



Umpleby, J. B. Note on the stratigra- 

 phy of east-central Idaho, 49 



* An old erosion surface in Idaho, 



109 



Van Orstrand, C. E. Table of the cir- 

 cular functions to radian argument, 

 299 



Vinal, G. W. The silver voltameter, 

 I, 451; II, 509 



*Vries, H. de. Future of plant breed- 

 ing, 430 



*Waggaman, W. H. Report on the 

 natural phosphates of Tenn., Ky., 

 and Arkan., 325 



* — ■ — Review of the phosphate fields of 

 Florida, 325 



Watson, T. L. Vanadium and Chro- 

 mium in rutile and the possible ef 

 feet of vanadium on color, 431 



*Weber, H. C. P. Atomic weight of 

 bromine, 464 



* — ■ — On a modified form of stability 

 test for smokeless powder and sim- 

 ilar materials, 487 



*Weed, A. C. Fishes of the District 

 of Columbia, 93 



Wells, R. C. Electrical potentials 

 between conducting minerals and 

 solutions, 514 



Wenner, Frank. Constancy of wire 

 resistance standards, 414 



The four-terminal conductor and 



the Thomson bridge, 63 



*Whetzel, H. H. Diseases of ginseng, 

 532 



White, David. Age of the Worcester 



phyllite, 114 

 *White, W. P. The detection of small 



heat effects at high temperatures, 



154 



