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VOLUMES XXI-XXX. 



528 



Gray, A., lignified snake from Brazil, v, 

 79. 



DeCandolle's origin of cultivated 

 plants, v, 241, 3 TO; vi, 128. 



Engler's development of the Vege- 

 table Kingdom, v, 394. 



Brook's law of Heredity, vii, 156. 

 tendency in variation, vii, 326. 

 geoder of names of varieties, vii, 

 396. 

 Ciematides Megalanthes, vii, 494. 

 George Bentham, viii, 319; ix, 103. 

 memorials of Engelmann and Heer, 

 viii, 61. 



Synoptical Flora of North America, 

 viii, 237. 



Botanical Test-book, xxx, 488. 

 Greenland, Flora of, not., iii, 247. 



glacier and glacier ice of, iii, 363 ; 

 vi, 413, 488 : vii, 241. 



minerals from, v, 158 ; ix, 72. 

 Grimes, J. S., creation of continents by 



ocean currents, ix, 339. 

 Grinnell, G. B., notice of Odontornithes, 



i, 255. 

 Grote, A. R., Sphingidas of North Amer- 

 ica, v, 210. 

 Groth, P., Tabellarische Uebersicht der 

 Mineralien, iii, 157. 



Physikalische Kystallographie, xxx, 

 80. 

 Guides for Science Teaching, iii, 336. 

 Gulf of Mexico, see Geology. 



Stream, investigations of, iv, 447, 

 479 ; vi, 80. 

 Giimbel, K. W. von, Geologie von Bay- 



ern, viii, 317. 

 Guyot, A., on the dry zones, vi, 161. 

 Memoir of Louis Agassiz, vi, 248. 

 Report of E. M. Museum, Prince- 

 ton, v, 87. 



Tables, Meteorological and Physical, 

 ix, 258. 



H 



Haacke, eggs of Echidna, viii, 475 ; xxx, 



85. 

 Hackel, E., Monographic Festucarum 



Europsearum, vi, 77. 

 Haeckel, E., Medusen, noticed, ii, 160. 



A Visit to Ceylon, vi, 80, 157. 

 Hague, A., volcanoes of northern Cali- 

 fornia, etc., vi, 222. 



volcanic rocks, 40th parallel, vii, 

 66, 453. 



Eureka Hill Mining District, vii. 65, 

 68. 



rocks of Washoe, Nevada, xxx, 388. 

 Hague, J. D., Mining Industries, iii, 162. 

 Hailstorms, iii, 249. 



Hale, H., Iroquois Book ' of Rites, vi, 



248. 

 Hall, A., variations of latitude, ix, 223. 

 star system 40, o 2 Eridani, xxx, 403. 

 Double Star Observations, ii, 84. 

 Hall, C. K, geology of Philadelphia 



County, v, 310, 473. 

 Hall, E. H, rotational coefficients of 

 various metals, v, 215. 



rotation of equipotential lines of 

 electric current, ix, 117. 

 Hall, J, Sections of Taconic regions, viii, 

 311. 



Devonian fossils of N. York, i, 44. 

 Bryozoans of the Upper Helderberg, 

 iii, 153. 



Fauna of the Niagara of Central 

 Indiana, iv, 294. 



Corals of the Niagara and Upper 

 Helderberg, iv, 295. 



Lamellibranchiata, New York Geo- 

 logical Survey, v, 391. 



Monomyaria of the Upper Helder- 

 berg, etc., noticed, viii, 234. 



Carboniferous Eurypteridas, ix, 69. 

 Hall's phenomenon, vi, 477; vii, 486. 

 Hallock, W., Smee battery and galvanic 

 polarization, v, 268. 



researches on magnets, vii, 321. 

 Halogens, reciprocal displacement, v, 

 305. 



vapor-density of, iii, 143. 

 Hamlin, A. C, Leisure Hours among the 



gems, ix, 84. 

 Hamlin, C. E., Syrian Fossils, vii, 490. 

 Hanks, H. G., Catalogue of California 

 State Museum, v, 88. 



California Mineralogical Reports, v, 

 392 ; vii, 493 ; ix, 263. 

 Hannay, J. B., density of solid and liquid 



cast-iron, i, 147. 

 Hann, J., Handbuch der Klimatologie, 



vi, 80, 158. 

 Hansen, E. C, on alcoholic ferments, ii, 



492. 

 Harger, O., New England Isopoda, ii, 

 411. 



"Blake" Isopoda, vii, 417. 

 Harkness, W., comet b, 1881, ii, 137. 



solar parallax, ii, 375. 

 Harrington, B. J., Life of Logan, v, 386. 



meneghinite, tennantite, vii, 411. 

 Harrington, M. W., study of Vesta, vi, 



461. 

 Harrison, B. F., rain-fall in Walh'ng- 



ford. Conn., i, 496. 

 Hartley, W. N., reversal of the metallic 

 lines in photographs of spectra, iv, 

 471. 

 Hartshorn, G. T., chemical contributions, 

 vi, 141. 



