CHAMBERS'S INFORMATION FOR THE PEOPLE. 



Seidlitz powders, 75 1. 



Seine, a peculiar kind of fishing-net, 709. 



Seine-fishing, 709. 



Selachii, an order of cartilaginous fishes, 161. 



Selenite, in Useful Minerals, 392. 



Selenium, one of the chemical elements, 327. 



Seleucus, era of, in Chronology, 293. 



Semolina, 739, 765. 



Senses, physiologically considered, 124-128. 



Sensory nerves, 124. 



Sepia (cuttle-fish), order Dibranchiata, in Zoo- 

 logy, 154. 



Serpentine, a rock, so termed from its colours, 395. 



Serpents (Ophidia), various families of, in Zoology, 

 163. 



Sewage of cottages, of dwelling-houses, and public 

 buildings in the country, 507 ; of cities, 508 ; 

 sewage irrigation, 510, 511. 



Sextant (the sixth part of a circle), 461. 



Shale (Ger. schalen, to peel or split), 27. 



Shallots, nature and culture of, 554. 



Shamoying, in Applied Chemistry, 347. 



Sharks, various species, in Zoology, 161. 



SHEEP GOAT ALPACA, 641-656. 



Sheep, in Zoology, 183 ; breeds or varieties of, 

 641 ; choice of breeds, 643 ; improvement of, 

 645 ; general management of, 647-650 ; dis- 

 eases of, 650-655. 



Shell-fish, dietetic character of, 747. 



Shingling, 409. 



Ships, their history and construction, 449 ; mer- 

 chant sailing-vessels, 452. 



Shirt, when introduced, 794. 



Shoe-buckles, when introduced, 798. 



Shooting, as a British field-sport, 696. 



Shooting-stars, 48. 



Shot, composition of, 411. 



Shrews (Sorecidce], in Zoology, 188. 



Shrubs for the lawn and garden, 568. 



Side-lever marine engine, figured, 430. 



Sidereal astronomy, 15. 



Sight, the sense of, physiologically considered, 125. 



Silicious (silex; flint), flinty, composed of flint, 394. 



Silicon, one of the simple elements, 327. 



Silk, treatment of the silkworm ; preparation of 

 the raw material ; various manufactures and 

 fabrics of; statistics 0^376-378 ; hygienic prop- 

 erties of, 786. 



Silkworm, in Zoology, 146, 148 ; in economy, 376. 



Silurian system, in Geology-, described, 25. 



Silver, in Chemistry, 303, 330 ; in Metallurgy, 

 430 ; silver mines, 403. 



Simoom, or kamsin, hot winds, 43. 



Sirocco, or solano, peculiar hot winds, 43. 



Siskin, treatment of, as a cage-bird, 672. 



Skates (Batides), group in Zoology, 161. 



Skin, the, structure and functions of, 122, 727,785. 



Slag, in Metallurgy, 405. 



Slate, in Geology, 18, 393. 



Sledge or sleigh, in Inland Conveyance, 434. 



Sleep, physiologically considered, 730. 



Slip, term in Geology, 19. 



Sloops or cutters, in Naval Architecture, 452. 



Sloths, a family of tardigrade animals, in Zoology, 

 179. 



Slugs (Liinacid<z), in Zoology, 153. 



Smacks, a kind of sloop, in Maritime Conveyance, 

 452. 



Smalts, an impure oxide of cobalt, 415. 



Smeaton's boiler, 420. 



Smell, sense of, physiologically considered, 125. 



820 



Smelting, processes of, 404, 406, 41 r, 412. 



Smock-frock, origin of, in British costume, 791. 



Smoke, 482 ; various means for preventing, 490. 



Snails, class Gasteropoda, 152. 



Snakes, innocent, 164 ; venomous, 163. 



Snipes (family Scolopacidce), in Ornithology, 170. 



Snow, character and causes of, 37. 



Snow-line, altitude or limits of, 41. 



Snuff-box, when first carried, 797. 



Soaps, in Organic Chemistry, 334 ; various, manu- 

 facture of, in Applied Chemistiy, 349. 



Soapstone, a variety of steatite, 395. 



Soda, bicarbonate of, baking-soda, 327 ; manu- 

 facture of soda, 338. 



Sodium, 307 ; the metallic base of soda, 327. 



Soils agriculturally considered, 516. 



Solan goose (family Pelicantdce), in Zoology, 168. 



Solanaceae, order in Botany, 102. 



Solar system, constitution of, 3, 8. 



Solder, in Metallurgy, composition of, 413. 



Solen or Razor-shell, 152. 



Solution, solvents, in Chemistry, 305. 



Sombrerite, in Useful Minerals, 392. 



Soot, 482. 



Sori, in Vegetable Physiology, 75. 



Sounds, velocity of, 253 ; reverberation of, 253 ; 

 musical sounds, 253. 



Soups, in Dietetics, 750 ; in Cookery, 754. 



Sowing and sowing-machines, in Agriculture, 524 ; 

 in Gardening, 548. 



SPADE-HUSBANDRY, 542-544 ; in Belgium, 543 ; 

 comparative value of, 544. 



Spalatro, palace of, 471. 



Spaniel, varieties of, 692. 



Spar, fluor, &c. in Mineralogy, 390. 



Spavin, a disease of the hock-joint in horses, 621. 



Species, in Zoology, 130. 



Specific gravity, 195, 201, 232. 



Specific heat, 205, 482. 



Spectacles, spectacle lenses, in Optics, 246. 



Spectroscope, 6, 248. 



Spectrum, prismatic, in Optics, 247. 



Speech and Voice, in Human Physiology, 128. 



Sperm-whale fishing, 718 ; spermaceti, 180. 



Spider, class Arachnida, in Zoology, 143. 



Spiegeleisen, 409. 



Spinach, nature and culture of, 559. 



Spinal cord, 124, 778. 



Spindle, in Machinery, 219. 



Spinnerets of the spider, 144. 



Spinning, by hand and by machine, 369-371 ; 

 373-376. 



Spleen, functions of, in Human Physiology, 117. 



Sponge, zoological character and construction, 

 133- 



Spores, in Vegetable Physiology, 75. 



Sprains, surgical treatment of, 781. 



Sprat-fishing, 710. 



Springs, various kinds of, 63, 499. 



Spruce, in Arboriculture, 596. 



Squirrel, family (Sauridtz), order Rodentia, in 

 Zoology, 1 88. 



St Cuthbert's beads. See Encrinites, 28. 



Stacks and stacking, in Agriculture, 531. 



Stag (red deer), family Cervida, in Zoology, 182. 



Stalagmite, 328. 



Stamens, the male organs of flowers, 74. 



Standard gold, 403. 



Starch, 65, 69, 331, 738, 795. 



Starlings (Sturnida:), 174 ; treatment of, as cage- 

 birds, 671. 



