RUG 
Rose of Sharon, fibres of, xxviii, 371. 
Roses, preparation of oil of, xxviil, 
383. 
, stearoptine of oil of ,xxviii,883. 
Rosé, G., on the identity of Ed- 
wardsite and Monazite, xxxv, 
249. 
Rosé, H., on the new metals niobi- 
um and pelopium, xlviii, 400. 
, examination of columbite, 
xlix, 228. 
Rosin, gas lights from, xxviii, 147. 
, bubbles blown in, ii, 179. 
Rosse’s great telescope, xlvi, 208 ; 
xlix, 221. 
Rossie lead mines, xxxvi, 24; xlil, 
174. 
Rot, dry, G. Gibbs, ii, 114. 
——, ——, P. Rainey, xxxiv, 169. 
—, ——, J. T. Plummer, xi, 
197: 
Rotary motion, instrument for illus- 
trating, (rotascope) W. R. John- 
son, xxi, 265.f 
multiplier, see under Elec- 
tricity. 
Rotascope, description of, W. R. 
Johnson, xxi, 265.f 
Rotation of the planet Venus, xxiv, 
204.f 
of fluids, xxvii, 84.f 
Rotative piston, Cooper’s, xvi, 313.f 
Rothe, C. E., remarks on the gold 
mines of North Carolina, xiii, 
201.6 
Rotting of timber in certain situa- 
tions, xxxii, 380. 
Rowles, evaporation of water under 
electrical insulation, xlvii, 190. 
Royal George, state of preservation! 
of, xl, 213. 
Society, see Society. 
Rubellite of Kingsbridge, li, 366. 
Ruby, fusion of, 11, 292. 
Rudder, temporary, xiii, 871.f 
Rue, W. de la, structure of electro- 
precipitated metals, xlix, 390. 
Ruffin, E., on calcareous manures, 
review of, xxx, 138. 
Ruggles, D., notice of the region 
about Fort Winnebago, xxx, I1.f 
222 
RUS8 
Ruggles, D., on the copper mines 
of Lake Superior, xlix, 64.f 
, tides in the North eeniean 
lakes! xlv, 18. 
, ona large trilobite, and Iowa 
‘coralline marble, xlix, 216. 
Rumford, Count, biographical me- 
moir of, xix, 28. 
» ——., sketch of the early his- 
tory of, J. Johnston, xxxiii, 21. 
‘Ruminants, follicular dentition in, 
Xxxvill, 129. 
Rumker, C., on currents in the 
ocean, xx, 180. 
‘Rupert’s drop, breakingof, xxv, 194. 
Rural economy, v, 380; xiv, 391. 
Ruschenberger, W. S. W., remarks 
on the barometer, and meteoro- 
logical observations on board U. 
S. ship Peacock, xxxili, 345. 
, translation of C. Bertero’s list 
of the plants of Chili, xix, 63, 
299; xx, 248; xxiii, 78, 250. 
Rush, B., on the sugar of the ma- 
ple, 1, 261. 
Russell, A.,on Statistical Enquiries, 
noticed, xxxix, 395. 
Russell, J. L., on the cryptogamia 
of Chelmsford, xxxix, 183. 
Russell, J. S., on waves, xxxiili, 
288; xxxiv, 1; xxxv, 290. 
, substitute for mountain ba- 
rometer, xxxv, 294. 
Russell’s Planetarium, xlii, 400. 
Russia, population of, iv, 889. 
, population and religion of, 
xv, 397. 
, religious toleration in,xvil, 192. 
, establishments in, v, 176. 
, extensive draining in, v, 393. 
, destruction of live-stock by 
wolves, xx, 177. 
, wood in, vi, 398. 
steppes of, xvii, 23. 
——, ——, salt, of Orenburg, 
205. 
, Irkutsk, notice of, xvii, 27. 
——, Okotsk, notice of, xvii, 30. 
-——, St. Petersburgh Botanic Gar- 
den, xx, 175. 
» libraries of, v, 177. 
xliv, 
