516 



INDEX. 



Geology — 



Moraines of Minnesota, revision of, 



Todd, 469. 

 Niagara Falls, episode in the his- 

 tory of, Spencer, 439. 

 North American geology, Wales, 



510. 

 Sauropodus Dinosauria, Marsh, 



487. 

 Spines, origin of, Beecher, 1, 125, 



249, 329. 

 Tertiary horizons, new marine, 

 Ortmann, 478. 



limestone reefs of Fiji, Agassiz, 

 165. 

 See also Eocks. 

 Gillespie, D. H. M., iodine in the 



analysis of alkalies, etc., 455. 

 Girty, G. H., fauna from Devonian 



black shale of Kentucky, 384. 

 Glass, colloidal, Barus, 270. 

 Gooch, F. A., iodometric determina- 

 tion of molybdenum, 168 ; manga- 

 nese as pyrophosphate, 233. 

 Gravitation constant and mean density 

 of the earth, 503. 



Hall, James, obituary, 284, 437. 

 Hall effect in an electrolyte, 504. 

 Harper's Scientific Memoirs, 199, 504. 

 Havens, F. S., separation of alumi- 

 num, by hydrochloric acid, 45 ; 



separation of nickel and cobalt by 



hydrochloric acid, 396. 

 Hay, O. P., species of ichthyodectes, 



225. 

 Hidden, W. E., sperrylite in North 



Carolina, 381 ; twinned crystals of 



zircon, 323 ; associated minerals of 



rhodolite, 463. 

 Hill, R. T., geological history of 



Panama and Costa Rica, 435, 505. 

 Hillebrand, W. F., vanadium and 



molybdenum in rocks, 209. 

 Hintze, C, Mineralogy, 435. 

 Hoffmann, G. C, Baddeckite, 274; 



Canadian minerals, 437. 

 Holden, E. S., Earthquakes of the 



Pacific Coast, 200. 

 Howe, E., detection of sulphides, etc., 



317. 

 Hutchins, C. C, irregular reflection, 



373. 



Isham, G. S., registering solar radi- 

 ometer, 160. 



Jamaica, late formations and changes 



of level, Spencer, 270. 

 Judith Mts., Montana, geology of, 



Weed and Pirsson, 508. 



Keith, A., dikes of felsophyre and 

 basalt in Virgin i;t, 305. 



Keyes, C. R., eolian origin of loess, 

 299. 



Kreider, D. A., structural and mag- 

 neto-optic rotation, 416. 



Labrador Peninsula, traverse of, Low, 

 510. 



Lacroix, A., granite of the Pyrenees, 

 511. 



Lambert, P. A., Differential and In- 

 tegral Calculus, 513. 



Light, absorption in a magnetic field, 

 Righi, 433. 



Low, A. P., traverse of Labrador 

 Peninsula, 510. 



Lucas, F. A., contributions to paleon- 

 tology, 399. 



M 



Marsh, O. C, Ceratopsia, 92; verte- 

 brate fossils for the National Muse- 

 um, 101 ; Jurassic foi'mation on the 

 Atlantic coast, 105 ; cycad horizons 

 in the Rocky Mountain region, 197 ; 

 value of type specimens, 401 ; origin 

 of mammals, 406 ; fossils in deter- 

 mining Geological age, 483 ; fami- 

 lies of Sauropodus Dinosauria, 487. 

 Martin, G. C, dunite in Western 



Massachusetts, 244. 

 Mineralogy, Hintze, 435. 



Text Book, Dana, 275. 

 Minerals — 

 Autunite, 42. 

 Baddeckite, 274. 

 Copper, native, Franklin Furnace, 



N. J., 187. Corundum, origin of, 



in North Carolina, 49. 

 Diaphorite, Washington and Mexico, 



316. 

 Erionite, 66. 

 Kalgoorlite, West Australia, 199. 



Kentrolite-, New Mexico, 116. 

 Lead, native, Franklin Furnace, N. 



J., 187. 



