528 _ GENERAL INDEX. [14 
Echinoderms of Northeastern Amer- 
ica, Verrill, tx, 127, 199. 
Eclipses of the sun, total, Todd, viii, 
76. 
Edwards, A. M., infusorial earths of 
the Pacific coast, ii, 369; Hudson 
River, ‘‘ Fiord,” iii, 182; deposit of 
diatomacez, v, 3885; discoliths in 
clay beds, v, 527; Tertiary clay on 
Long Island, N. Y., 1, 270; ornith- 
ichnites from the Newark sand- 
stone, N. J., 1, 346. 
Egleston, T., Catalogue of minerals 
and synonyms, ii, 434. 
Elastic lengthening, law of, Thomp- 
son, ili, 32; stress-strain function, 
finite, Becker, vi, 337. 
Hlectric are, alternating, Nichols, i, 1. 
aureole, Lehmann, 1, 418. 
cell, a one-volt standard, Car- 
hart, vi, 60. 
charges, loss of, in diffuse light 
and in darkness, Branly, v, 528; 
potential of, Heydneiler, v, 350. 
condition of the air in high alti- 
tudes, viii, 69. 
conductivity of absolutely pure 
water, viii, 509 ; of flames, vii, 314 ; 
of gases, Braun, viii, 421; of rock 
magmas, Barus and Iddings, iv, 242. 
current, force exerted by, More- 
land, v, 392. 
currents of high frequency, | 
Swinton, v, 390. 
discharge, action on gases and 
vapors, Ludeking, iv, 254. 
discharges and coronoidal, Pupin, 
iii, 463. 
gyroscope, Trouvé, i, 156. 
measurement, units adopted by 
National Academy, ix, 316. 
meters, de Fodor, i, 481. 
oscillations, Toepler, iv, 423; 
Zehnder, iv, 498; damping of, 
Bjerknes, ii, 511; frequency of, 
Patterson and Arnold, vi, 309; on 
iron wires, Trowbridge, ii, 223; of 
low frequency and their resonance, 
Pupin, v, 325, 420, 503; luminous | 
effects, Ebert, vill, 427; of very 
small wave-lengths, Righi, vi, 396. 
properties of semi-permeable 
walls, Ostwald, i, 324. 
radiations in copper filings, Craft, 
Vl ald 
refractor of liquids, Drude, 1, 418. 
resistance of allotropic silver, 
Overbeck, iv, 424; measured by 
alternating currents, Kohlrausch, 
vi, 150; of the human body, von 
Frey, iv, 76; measurement of, 
Price, viii, 425; of metals, Dewar 
and Fleming, iv, 499; standards of 
low, Jones, vi, 479. 
resonance, Bjerknes, 1, 71; ap- 
paratus, Righi, vii, 236. 
tea of National Academy, ix, 
316. 
waves, Hertz, vii, 244; Lecher, 
i, 156, iii, 482. 
absorption of, Klemencic, vii, 
77; absorption power of metals for 
the energy of, iv, 498. 
double refraction, Mack, ix, 
316; Lebedew, 1, 419. 
at the extremity of a linear 
conductor, reflection of, Birkeland, 
vi; 72. 
Hertz on the propagation of, 
iii, 935. 
in ice, Blondlot, ix, 59; double 
refraction of, Biernacki, 1, 418. 
in insulating fluids, velocity, i, 
519. 
in open circuit, Elsas, i, 156. 
interference of, v, 159, vi, 397. 
on iron wires, Trowbridge, viii, 
307. 
photographic action in, i, 242. 
refraction by alcohol, Ellinger, 
v, 204. 
velocity, Avons and Rubens, ii, 
511; Sarasin and de la Rive, vi, 
301; Trowbridge and Duane, ix, 
2975 20. 104. 
wave lengths, Wartz, i, 324. 
in wires, theory, Elsas, vi, 397. 
and light waves, Bjerknes, vi, 
72 
Electricity, Chapters on, Sheldon, ii, 
o11. 
discharge through exhausted 
tubes, Thompson, ii, 426. 
influence of the character of me- 
tallic points on discharges of, 
Wurtz, v, 923. ; 
on iron wires, wave lengths, 
St. John, viii, 311. 
source of frictional, Christian- 
sen, vili, 508. 
of waterfalls, Lenard, iv, 423. 
and Light, Maxwell’s Theory, 
Boltzmann, iii, 536. | 
and Magnetism, Emtage, ii, 510 ; 
iii, 155; S. P. Thompson, ix, 153. 
Electrification and cloud condensa- 
tion, Aitken, iv, 204. 
Electro-chemical Analysis, Smith, i, 
69. 
effects due to magnetism, Squier, 
v, 448. 
equivalent of copper, Vanni, ii, 
511; Beach, vi, 81. 
Electromagnet, Thompson, i, 327. 
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