518 



GENERAL INDEX. 



[40 



rocks, 45, 238; augite from 

 Stromboli, 45, 463; Chemical 

 Analyses of Rocks, 48, 161; new 

 leucite rock, 50, 33; rhyolites of 

 Lipari, 50, 446. 



Water power in Canada, 49, 388. 



Watson, J. B., Psychology, 4g, 221. 



Weed, H. T., Chemistry in the 

 Home, 45, 471. 



Weld, L. D., Theory of Errors and 

 Least Squares, 41, 562. 



Wellisch, E. M., motion of ions 

 and electrons through gases, 

 44, I- 



Wells, H. L., progress of chemis- 

 try, 1818-1918, 46, 259; Chemical 

 Calculation Tables, 48, 161; an- 

 alytical weighing, 49, 375. 



West Indies, fossil Bryozoa, Canu 

 and Bassler, 49, S3. 



— geology and paleontology, 

 Vaughan, 49, 82. 



West Virginia, coal beds, Hennen, 

 46, 770. 



— geol. survey. See GEOL. RE- 

 PORTS. 



Western Australia geol. survey. 

 See GEOL. REPORTS. 



— rounding of pebbles, Jutson, 



48, 429; sheet-flows, Jutson, 48, 

 435. 



Whetzel, H. H., Phytopathology, 



46, 549- 



Whipple, G. C, State Sanitation of 

 Massachusetts, 43, 496. 



White, W. A., Character Forma- 

 tion, 43, 254. 



White, W. P., switch for thermo- 

 element work, 41, 307; switch 

 for delicate potential measure- 

 ments, 46, 610; silicate specific 

 heats, 47, 1; specific heat deter- 

 mination at higher temperatures, 



47, 44- 



Whitlock, H. P., crystal structure, 



49, 259. 



Whittaker, E. T., Modern Analysis, 

 41, 297; Edinburgh Mathematical 

 Tracts, 41, 298. 



Wickham, H. F., fossil beetles from 

 Sangamon, 111., 44, 137; fossil 

 beetles, Vero, Florida, 47, 355. 



Wieland, G. R., Flora Liasica de la 

 Mixteca Alta, 42, 370; Fossil 

 Cycads, Taxonomy, 43, 333; 

 American fossil cycads, 46, 645; 

 classifcation of Cycadophyta, 47, 

 391; Tetracentron-Drimys ques- 

 tion, 49, 382. 



Wiley, H. W., Beverages, and 

 Adulterations, 47, 297. 



Williams, H. S., fauna of Chap- 

 man Sandstone of Maine, 42, 169. 



— obituary notice, Schuchert, 46, 

 682. 



Williams, S. R., achromatoscope, 

 41, 101. 



Williamson, E. D., forms of calcium 

 carbonate, 41, 473. 



Williston, Samuel W., obituary 

 notice, 47, 220. 



Winchell, A. N., dustfall of March 

 9, 1918, 46, 599; 47, 133. 



Windhausen, A., Cretaceous-Ter- 

 tiary boundary in So. America, 

 45, 1; Argentine Neocomian, 47, 

 303. 



Winton, A. L., Food Analysis, 44, 



V- 



Wisconsin, age of iron ore, Savage, 

 and Ross, 41, 187. 



— Fox- Winnebago Valley, 41, 374. 



— geol. survey. See GEOL. RE- 

 PORTS. 



— peat resources, Huels, 41, 225. 



— physical geography, 42, 83. 



— Quaternary Geology, Alden, 47, 



143. 



Wood, H. O., 1914 eruption of Mo- 

 kuaweoweo, 41, 383. 



Wood, R. W., signalling by light 

 rays, 49, 214. 



Woodhouse, James, Life of, E. F. 

 Smith, 46, 541. 



Woodruff, L. L., Origin of Life, 46, 

 770. 



Woods, H., Palaeontology, 50, 170. 



Woolard, E., generalized relativity 

 and gravitation, 45, 425. 



World Power and Evolution, Hunt- 

 ington, 48, 396. 



Wright, A. W., obituary notice, 

 41, 152, 361. 



Wyckoff, R. W. G., Crystal struc- 

 tures of carbonates of calcite 

 group, 50, 317. 



Wyoming Historical and Geol. So- 

 ciety proceedings, 41, 381. 



X-rays, absorption, Auren, 48, 72; 



Owen, 47, 301; in aluminum, 



Williams, 46, 766. 

 — analysis, sensibility, de Broglie, 



49, 79- 



