518 



GENERAL INDEX. 



[14 



Electricians, Congress of, vii, 503; viii, 



410. 

 Electricity, Absolute Measurements in, 

 Gray, ix, 235. 



atmospheric, effect of solar radia- 

 tion on, viii, 161. 



from condensation of vapor, iii, 71. 

 disruptive discharges of, in eases, 

 Wolf, viii. 162. 



dissipation of fog by, vii, 226. 

 Elementary Lessons in, Thompson, 

 ix, 235. 



and Light, Rayleigh, vi, 460. 

 magneto-optical generation of, Shel- 

 don, xl, 196. 



in Modern Life, de Tunzelmann, ix, 

 401. 



passage of through gases, Shuster, 

 viii, 492. 



Practical, Ayrton, iv, 152. 

 ratio of electromagnetic to electro- 

 static unit of, Rowland, Hall, and 

 Fletcher, viii, 289; Rosa, viii, 298. 

 sewage purification by, viii, 492. 

 transmission of, iii, 307. 



of power by, Deprez, viii, 41 1. 

 Electrodynamic waves, Hertz's experi- 

 ments on, vii, 227, 316, 409. 

 Electrolysis by alternating currents, 

 Maneuvrier and Chappuis, vi, 152; 

 of water, von Helmholtz, vi, 293. 

 Electrolytes, resistance of, vii, 228. 

 Electromagnetic wave9, interference, 



Fitzgerald, vi, 387. 

 Electrometer, absolute, ii, 72 

 aperiodic, iii. 307. 



calibration of, Shea, v, 204; capil- 

 lary, Pratt, v, 143. 



pendulum, experiments with, Mayer, 

 ix, 327. 



spring-balance, Mayer, ix, 513. 

 Electromotive force of voltaic arc, iii, 

 237. 



forces, direct and counter, Carhart, 

 i, 95. 



divergence from thermo-cheini- 

 cal data, vii, 315. 

 Electrostatic battery, i, 153. 



and electromagnetic units, iii, 152 

 Elizabeth Thompson Science Fund viii, 



171. 

 Emerson, B. K., ' : Bernardstoa series" of 

 metamorphic Upper Devonian rocks, 

 xl, 263, 362. 

 Emerson, J. S., Kilauea after eruption, 



1886, iii, 87. 

 Emmons, E., at Williams College, i, 399 ; 

 work on Taconic, i, 241 ; views of 

 Taconic system, iii, 412. 

 Emmons, S. F., Geology and Mining 

 Industry of Leadville, Col, v, 84. 



Energy in permanent strains, Barus, vi, 

 468. 



potentialized in permanent changes 

 of molecular configurations, Barus, 

 viii, 193. 



radiant, history of doctrine of, Lang- 

 ley, vii, 1. 



and electrical, Trowbridge, viii. 

 217. 



of standard candle, Hutchins, 

 ix, 392. 

 and vision, Langley, vi. 359. 

 Engel, A., Die natiirlichen Pflanzenfam- 

 ilien, etc., iv, 74; v, 2'59 ; viii, 415; 

 ix, 75 ; xl, 93. 

 Engelmann, G., Botanical Works, vi, 76. 

 Engine and Boiler Trials, Hand Book, 

 Thurston, xl, 262. 



non-conclensiug steam, Nipher, viii, 

 281. 

 Ensign, J. R., determination of bromine, 



xl, 145. 

 Entomology for Beginners, Packard, vi, 



297. 

 Ericsson, J., moon's surface, ii, 326. 

 Etheridge, R., Jr., Blastoidea in British 



Museum, ii, 409. 

 Ethnology, 6th annual Report of Bureau 



of, viii, 420. 

 Evolution, cross-infertility in, Gulick, 

 xl, 437; utilitarianism in relation to, 

 Gulick; xl, 1 ; divergent, and the Dar- 

 winian theory, Gulick, ix, 21. 

 of the ArietidEe, Hyatt, ix, 243. 

 Exhibition of implements against crypto- 

 gams and parasites, i, 160. 

 Expansion, determination of the coeffi- 

 cient of cubical, Mayer, xl, 323. 

 Exposition Universelle, Paris, xl, 96. 

 Eyerman. J., Triassic foot-prints, i, 72; 

 Mineralogy of Pennsylvania, vii, 501 ; 

 Determinative Mineralogy, xl, 92. 



Farlow, W. G., botanical notices, i, 479 ; 



iv, 75, 495; viii, 168, 416. 



Index of the Fungi of U. S., vii, 79. 

 Fauna, see Zoology. 

 Feistmantel, Coal and Plant bearing beds 



of E. Australia, xl, 495. 

 Fernando de Noronha, Geology of, vii, 



145, 178; ix, 247. 

 Ferrel, W , law of thermal radiation, viii, 



3 ; Treatise on Winds, viii, 420 ; 



Weber's law of thermal radiation, ix, 



137. 

 Fewkes, J. W., new Rhizostomatous 



Medusa, iii, 119; deep-sea Medusas, 



v, 166. 

 Fislier, D., meteorite from St. Croix Co., 



Wis., iv, 381. 



