510 



GENERAL INDEX. 



[14 



Dutton. C. E.. Tertiary history of the 

 Grand Canon district, iv. 81. 482. 



volcanoes of the Hawaiian Islands, 

 v. 219; sxx, 487. 



effect of a warmer climate on gla- 

 ciers, vii 1. 

 Dwight, W. B.. fossils in Wappinger 

 Yalley limestone, i, 78; vii. 249. 



E 



Earle, J., English Plant Names, ii, 491. 

 Earth, density of. iii, 51. 



physics of crust of, iii, 283. 

 rigidity of, Darwin, v, 464. 

 stresses in. Darwin, ii, 317 : iv. 256. 

 structure of, Suess, vii, 151. 

 temperature of the hemispheres, 

 Fen-el, iv, 89. 



velocity of, as affected by small 

 bodies passing near it, Neivton, xxx, 

 409. 

 Earth-moon system, evolution of, Haugh- 



ton. iv. 335. 

 Earthquake in Ischia, iii, 337; vi, 473; 

 viii. 312. 



in Middle and Eastern States, viii. 

 242. 



Phillipine Islands, i, 52. 

 reported, at Caraccas. vi, 79. 155. 

 Earthquakes, American, etc., Bockioood, 

 i. 198; ii, 289; iii, 257, 337; v, 353: 

 vi. 155; vii, 358; viii, 242; ix. 425. 

 Japanese, ii. 468 ; v, 361. 

 in Spain. Rockvjood, ix, 282. 

 of Switzerland, iii. 337. 

 see also under Geology. 

 Earths, metals of the rarer, iii, 412. 

 Eastman. J. R., solar parallax, iii, 160. 

 meteoric iron from Grand Rapids, 

 viii, 299. 

 Eaton, D. C, botanical notices, i, 330; 

 iv, 156. 



Farlow*s New England Alga?, ii, 

 158. 

 Ebonite, transparency of. ii. 148. 

 Eclipse, see Sun. 

 Edison's electrical met?rs. iii. 52. 



tasimeter. Mendenlia.il. iv. 43. 433. 

 Edwards. A. M.. '• Blake"' Crustacea, ii. 



413. 

 Egypt, prehistoric man in. viii, 158. 

 Eichler. A. W., Jahrbueh des botani- 

 scheu Gartens, iii, 70 ; v. 479 ; ix, 266. 

 female flowers of Conifera?. iii, 418. 

 Flora Brasiliensis. v. 162. 

 Elasticity and motion, ii, 396. 



of solids, vii. 140. 

 Electrical absorption of crystals, ii. 147. 

 accumulator, ii. 75; iii, 414, 415 ; 

 .- Ti, 319. 



Electrical battery, irregularities in action 

 of. xxx. 34. 



observed and calculated force 

 of. viii, 452. 



the Daniell, ix. 257 ; the Smee. 

 v. 268. 



congress, v. 79 ; viii. 71. 

 current, measurement of, Cheesrt 

 viii. 117 ; Trowbridge, ix. 236. 



by silver voltameter, viii, 224. 

 currents, alteraatiu°- produced, ix, 

 377. 



apparatus for determination of 

 Foucault's. vi. 320. 



effect of on thinning of films, 

 ix. 334. 



magnetic effect on. v, 215 ; vi, 

 477: vii. 486; Rail, ix. 117. 



of earth's surface, vii. 237: viii. 

 71. 

 exhibition at Philadelphia, viii, 225 ; 



Paris, ii. 395; viii. 310. 

 furnace. Cowles, xxx, 308. 

 lamps, incandescent, deposits in. 

 xxx, 314. 



radiation from, ix, 494. 

 light, absorption of. by the atmos- 

 phere, iv. 287. 



lighting, distribution of. over great 

 distances, ix, 59. 



lights, cost Of. v, 150. 

 machines, dynamo, ii, 484 ; iii. 147 ; 

 vii, 57. 



measurements, photography in. 

 Trowbridge and Hayes, ix. 374. 

 meters, Edison"s. iii, 52. 

 piles, (thermo-electric), ix. 495. 

 potential differenoe of. iii, 487. 



of the air. ix, 403. 

 rays, reflection of, iii, 413. 

 resistance, expression of. Nipher. 

 vii. 465. 



of distilled water, ix, 256. 

 of gases, iii. 321. 4S7. 

 of metals, infiuenceof light on. 

 Bostwick. viii, 133. 



of a vacuum, iii, 149, 487. 

 unit of. see ohm. 

 shadows. Fine and Magie. i, 394. 

 spark, vision by, Stevens, iv. 241. 

 tension of mercury, iv. 61. 

 units, iii, 241 ; iv, 62. 310 ; xxx. 22 ; 

 see ohm. 

 Electrical Works Noticed — 



Elementary Lessons in Electricity and 

 Magnetism, S. P. Thompson, iii. 241. 

 Notes on Thompson's Lessons, 

 Murdock. vii. 320. 



Treatise on Electricity, Maxicell 

 in. 149. 

 La Lumiere Electrique, iii, 250, 



