INDEX 



703 



Rensselaer Polytechnic Institute, 

 2, 12. 



Resistance, Electrical; Effect of 

 Magnetic field on, 338. 



Resistance, Electrical; Measure- 

 ment of, 313. 



Resolving Power, 502, 528, 588. 



Resonances, 2, 28. 



Richard (see Jamin), 410. 



Riecke, E., 36. 



Ritter, J. W., 639, 650. 



Rontgen, W. C.^4, 252^ 410, 414. 



Rontgen-rays, 571, 573, 576. 



Rogers, W. A., 441, 507. 



Rosa, E. B., 266. 



Royal Society of London, 3. 



Ruling- Engines, 8, 487, 508, 691. 



Rumford, Count, 6, 408, 416, 669. 



Rumford-fund, 7, 343, 521, 548. 



Rutherfurd, L. W., 8, 487, 494, 513. 



Savart, F., 411, 627. 



Schiller, N. N., 252. 



Schneider, Theodore, 9, 487, 692. 



Scott, C. F., 237. 



Screws, Perfect, 8, 487, 506. 



Sears, David, 80, 98. 



Seebeck, L. F. W. A., 134, 640. 



Shroder v. d. Kolk, 411, 414. 



Siemens Armature, 219, 221,. 222, 

 228. 



Siemens Unit, 4, 147, 152, 155, 156. 



Silbennann, J. T., 408, 410, 421. 



" Skin-Effect " of Alternating Cur- 

 rents, 283, 661. 



Solar Spectrum, 9, 512, 521. 



Sound, Velocity of, 411. 



Specific Heats of Air, Ratio of, 410. 



Specific Heats of Gases, 409, 410. 



Specific Heat of Water, 387. 



Spectroscope, Concave Grating, 489, 

 499, 512, 551, 589. 



Spectroscope, Plane Grating 1 , 588. 



Spectrum of the Aurora, 2, 31. 



Spectrum, Solar, 512, 521. 



Stampfer, S., 411. 



Stefan, J., 69. 



Steinheil, 160, 168. 



Steinmetz, C. P., 278. 



Stokes, Sir G. G., 674. 



Stoletow, A. G., 36, 48, 50, 71, 73, 91, 



105, 154. 

 Sturgeon, William, 53. 



T. 



Tate, T., 416. 



Tatnall, R. R., 685. 



Telegraph, Multiplex Printing, 10. 



Temperature, Absolute Scale of, 



381. 



Temperature, Effect of, on Mag- 

 netization, 58, 65, 74. 

 Tesla, Nicola, 578. 

 Thalgn, T. R., 513, 546, 555. 

 Thermometers, Air, 358, 366. 

 Thermometers, Mercurial, 346, 363. 

 Thermometers, Mercurial and air, 



352. 

 Thermometers, Comparisons of, 



477. 



Thermometers, Standard, 363. 

 Thermometry, 345, 439. 

 Thiessen, M. F., 481. 

 Thompson, S. P., 233, 234, 235. 

 Thomson, Elihu, 232, 235, 573, 574, 



584, 585. 



Thomson, J. J., 579, 674. 

 *Thomson, Sir William, 37, 77, 78. 



79, 148, 213, 346, 381, 414, 421, 



626, 649, 657. 



ThiTnderstorms, Theory of, 183, 213. 

 Transformers, Theory of, 276, 280. 

 Tresca, H. E., 410, 513. 

 Trowbridge, John, 215, 364. 

 Tyndall, John, 26, 27, 97, 574, 641. 



V. 



Venetian Institute; Prize Essay, 7. 



Verdet, M. E., 58, 79. 



Violle, J. L. G., 408, 418. 



Vogel, H. C., 549, 556, 557. 



Volta, 626, 639, 645. 



Vortex in Outlet of Water, 23. 



Waldo, L., 481. 

 Waltenhofen, A. K, 421. 

 Wandschaft's Gratings, 549. 

 Water, Specific Heat of, 387. 

 Water Battery, 241. 



* The references to Lord Kelvin are so numerous that only the important ones are noted 

 here. 



