INDEX. 



661 



Skerrett, Commander, lxxxi. 



Sketch of a reindeer, prehistoric, cxxii. 



Slack, Mr. Henry J., xcviii., cvi. 



Dr. J. H., 312, 615. 

 Slade, Prof. D. D., 5S3. 

 Slaughter-house for swine, 390. 

 Slaughtering, new method of, 450. 

 Sloan, Dr., cli. 



Smallwood, Dr. Charles, G10. 

 Smell, removal of, from hog yards, 3S9. 

 Smith, Dr. Edward, 616. 



Dr. J. Lawrence, 219. 

 Mr. Archibald, 148. 

 Mr. George, cxxiv. 

 Mr. Hermann, 132. 

 Mr. S. J., cxlviii. 

 Mr. Willoughby, 14S. 

 Mr. Worthington,404. 

 Prof. Hamilton L., Ixxx., 4. 

 Smithsonian Institution, lxxx., xci., 81, S5, 



219,268,327,339, 

 591, 594. 

 report of the, 128. 

 Publication No. 267, cxxix. 

 Smitt, Dr., cxlvi. 

 Smythe, Prof., 2, 4. 

 Snake-bite, cautery for, 559. 

 Snow protects against frost, 375. 

 Snow-flower, the, 360. 

 Sociology, an experiment in, 60S. 

 Soda, bisulphite of, and chlorine, 49S. 

 from salt and ammonia, lxi. 

 sulphite of, in distilleries, 443. 

 Solar atmosphere, new elements in, 45. 

 eclipse of 1S70, in Italy, 20. 



of 1S74, 40. 

 eclipses and terrestrial magnetism, 



172. 

 parallax, 16. 

 phenomena, the, 14. 

 photosphere, recent observations on 



the, 11. 

 protuberances, direct photography 



of the, 529. 

 radiation, 19. 



spectrum, photographs of the, 13. 

 spots and faculre, 44. 



and solar refraction, 15. 

 changes in the, 15. 

 nature of the, 16. 

 Solidiiication of nitrous oxide, 201. 

 Sol in as, Mr., 495. 

 Solms-Laubach, Count, clxi. 

 Solomon Islands, tree - villages of the, 



29S. 

 Solvay, Mr. Ernest, lxi. 

 Sonorous sensations, durations of, 196. 

 Sonstadt, Mr.,571. 

 Soret, Mr., 138. 



Sound, duration of the sensation of, 175. 

 effect of fog on, 15S. 

 mechanical equivalent of, ISO. 

 reflection upon flames of, 175. 

 refraction of, 187. 



the atmosphere as a vehicle of, 1S1. 

 Soutar, Dr., 296. 

 South Africa, vegetation in, 374. 



Atlantic, temperatures of the, 56. 

 Southern Historical Society, 590. 



Magazine, 591. 

 Sowcrby, Mr., 361. 

 Spawning of whiting-pout, 312. 

 Species of plants, list of new, clxii. 

 Specific heat of gases, 145. 



Spectra, absorption, at low temperatures, 

 45. 

 the variability of, 172. 

 Spectroscope for assaying, clxxxii., 215. 

 Spectroscopic apparatus, effect of tem- 

 perature on the, 14. 

 chemistry, 214. 

 Spectroscopy, xlii. 

 Spectrum in the Milky Way, 9. 

 lines, width of, 160. 

 of the comet, xxix. 

 Spengel air-pump, the, 599. 

 Sperling, Commander R. M., 616. 

 Spermophilus beecheyii, 397. 

 Spider, a new fossil, 317. 

 Spiders, cliii. 



Spinal column of the sturgeon as food, 447. 

 Spirals of the nautilus, 1. 

 Spitzbergen, discovery of coal in, 23C. 

 Spofford, Mr. A. R., 591. 

 Sponge, what is a ? civ. 

 Sponges, cxli. 



cleaning of, 450. 

 Sporer, Prof., xxvi., 16, 43. 

 Spottiswoode, Mr., 127. 

 Squier, Mr. E. G., 576. 

 Squirrels, North American, clvii., 332. 

 Stager, Mr. Anson, xliii. 

 Stahlberger, Prof., 114. 

 Standard time by telegraph, xxv., 33. 

 Stanley, General, 594. 



Mr. H. M., xcv., cxxxi. 

 Starch, detection of, in milk, 212. 



for rendering clothing incombus- 

 tible, 496. 

 paste, preparation of, 534. 

 soap, and paper from corn, 522. 

 unfit for the food of infants, 566. 

 Stars, scintillation of, xxx., 10. 

 Stations for observing the transit of Ve- 

 nus, xxi. 

 Statistics, industrial, clxxxvi. 

 Statuary in gardens, cleaning, 454. 

 Steam, condensation of, by cold surfaces, 

 472. 

 for barking trees, 409. 

 used on canals, cc. 

 Steam-hammer, the thirty-five ton, 4S3. 

 -motor, the simplest, 472. 

 -pressure indicators, 4S2. 

 Steamboat propeller, a new, 470. 

 Steamer, the swinging saloon, cxcvii. 

 Steamers launched, cxcvii. 

 Stearic acid, improvement in the manu- 

 facture of, 517. 

 Stearns telegraphy, xliv. 

 Steel, an alloy resembling, 511. 

 from ore directly, clxxv. 

 making, pneumatic, '^17. 

 phosphorus, 210. 

 prize for an essay on, 601. 

 restoring burned, 513. 

 tempering of, 513. 

 Steere, Mr. J. B., xciv., 260. 

 Stefan, Mr., 169. 

 Stein, Dr., 490. 

 Steiner, Mr., liii., 238. 

 Steinheil spectroscope, the, 45. 

 Stellar parallaxes, xxx., 6. 

 Stelzner, Mr., Ixvii. 

 Stephanocyphus mirabilis, 354. 

 Sterlet from St. Petersburg at the Bright- 

 on Aquarium, 42S. 

 Stevens, Mr. Henry, 616. 



