INDEX. 



709 



Port of Boulogne, 5S0. 

 Portis, A., 472. 



Portugal, observatories of, 81. 

 Potauiu, 346. 

 Potash salts. 559. 

 Pott, 532. 

 Poussin,292. 

 Powalky, Dr. C.,10. 



Powell, Major J. W., 199, 327, 333, 394, 

 400. 

 Rev. Thomas, 520. 

 and Lealaud, 355, 35C, 3G0, 36G. 

 Powers, 402. 

 Pozzi, Dr. Samuel, 391. 

 Prairies, origin of, 50S. 

 Pratt, Rev. George, 401. 

 Pre-Cambrian rocks, 2S7. 

 Precious metals, 615. 

 Preece, 226. 



Prehistoric copper implements, 3S3. 

 Prejevalsky, 397. 

 Preston, S.Tolver, 111. 

 Preston's experiment, 234. 

 Priestley, J., 472,550. 

 Prilleux, 51S. 

 Primary zoogeographical regions of the 



earth, 4S4. 

 Priugle.C. G.,508. 

 Pringsheim's Jahrbuch, 513. 

 Pritchett, Prof. C. W., 22, 64. 

 Prize offered for steam road-wagons, 583. 

 Prizes for the discovery of comets, 43. 



in astronomy, 43. 

 Proceedings of the Society of Northern 



Antiquaries, 3S5. 

 Production of iron and steel in the world, 



617. 

 Productive capacity of all furnaces, total, 



605. 

 Progel, 511. 



Progress in agriculture, 525. 

 Projection of Lissajous curves, 223. 

 Protection of iron surfaces, 601. 

 Protozoa, 423. 



Protuberances observed, 13. 

 Proudnt Observatory (Troy), 74. 

 Prout, farm of Mr., 556. 

 Przewalsky, Colonel, 345, 346. 

 Pseudobrookite, 284. 

 Pubic bones of birds, 479. 

 Puffin, the common, 480. 

 Puiseanx, 26. 

 Pulkova Observatory, 9. 

 Pullen, Lieutenant, 320. 

 Pulnj, of Vienna, 218. 

 Pumpelly, R.,304, 309. 

 Puruell, S., 283. 

 Putnam, F. W., 382. 

 Pyro-battery, a, 247. 

 Pyrophosphorite, 284. 



Q. 



Quadruplex system in telegraphy, 5S7. 

 Quartz for standard measures, 212. 

 Quatrefages, De, 392, 39S. 

 Quetelet^Director F., 84, 167. 

 Ernest, 625. 



P. 



Eabenhorst, 372, 514, 517, 519. 



Rabi-Ruckhard, 472. 



Radau, 164. 



Radcliffe Observatory (Oxford), 82. 



Radiolaria, 36S. 



Radiolariaus and Dialomaceae of the coal- 

 measures, 369. 

 Radiometer, and literature relating to it, 

 149. 

 experiments with, 233. 

 Radkofer, 523. 

 Rafiuesque's paper, 503. 

 Ragona, Director, 79, 154. 

 Railway across Newfoundland, 574. 



bridge across the Tay, 581. 

 Rainbow phenomenon, 239. 



theories of the, 1S9. 

 Rainfall cycles, 192. 



distribution of, 175. 



does it diminish ? 122. 



measurements, 156. 

 Rain-gauges above ground, 156. 

 Ralston, W. R., 404. 

 Rambaud, A., 396. 

 Rammelsberg, 276. 

 Ramsay, 2S9. 

 Rana viridis, 449. 

 Rangard, 18. 

 Ranvier, Prof., 359. 

 Rarefied air, influence upon the human 



body, 196, 197. 

 Raspail, V. R., 524, 625. 

 Rau, Prof. Charles, 3S1. 

 Rauff, 277. 

 Ravenel, H. W., 507. 

 Rayet, Prof., 2, 76. 

 Rayleigh, Lord, 160, 219. 

 Read, Prof. M. C.,3S3. 

 Recent formation of minerals, 305. 

 Reclam, 189. 



Red Sea and Suez Canal surveys, 318. 

 snow, 204. 

 stars, 7. 

 Reddingite, 285. 

 Redier's aneroid, 155. 

 Rees, Prof. J. K., 73, 51S, 523. 

 Reflection and refraction of light, 235. 

 Reflectors, large glass, 38. 

 Refraction, indices of, 243, 273. 



of light and sound, 204. 

 Regnard, 263. 

 Reguault, Henry B., 220, 227, 625. 



Victor, 226. 

 Rehmann, Dr. A., 514. 

 Reich, 168. 



Reich's experiments, 212. 

 Reichardt, 549. 

 Reichenbach,438, 511. 

 Reiu, Dr. J. J., 145, 202. 

 Reiuke, 516. 

 Reis and Stiibel, 166. 

 Reiss, W., 337. 

 Religion, 404. 

 Remsen, 25S. 



and Morse, 266. 

 Renard, 292. 

 Renevier, 310. 

 Renshaw, J. H., 334. 

 Reports of American observatories, 46. 



on the observatories of Italy, 2. 

 Reproduction, modes of growth and, 371. 

 Repsold's circles, 39. 

 Reptiles, 472. 



nearest to mammals, 476. 

 Reslhuber, 11. 

 Respighi, Director, 78. 

 Restoration of absorptive power, 542. 

 Results of the eclipse of 1878, 19. 

 Retina of the living animal, 240. 



