



INDIA. 



Rostrate chn-tndnu drscribi il, \, 



r, M. de, liis ;. rial \ \ aucs, \ i. t>7 

 Roi;al Society, account oftlic, i. 



canal in France; iii. '27 



Rudder, on the force of tin-, is:, 36-1 

 Ruins of Hcrciilanenm, ii, v>-29 

 ofthc Parthcninin, ii, ! 



Balaclava, 



Rnm, properties of, v, 83 

 Rum ford, count, on preparing coffee, 



v/108 



llnperCs drops, nature of, vi, 166 

 Sabrina, account of the isle of, i, 506 

 Sadler, his terial voyage, vi, 75 

 Sayo-tree, description of, v, 59 

 Sahara, account of the desert of, ii, 483 

 Saint Pierre, his theory of the tides, 



iii, 329 



Sai ammoniac in volcanoes, i, 526 

 Salnmander, account of the, v, 556 

 Saline \\ tter>, observations on, iii, 183- 

 Salle in Barbary, earthquake at, ii, 41 

 Salmon, natural history of the, v, 519} 



fishery, account of the, 520 

 Salt mint's in Poland, ii, -274; descrip- 

 tion of, 367; works in Cheshire, 369 

 Salt rain, storms of, iv, 157; observa- 

 tions on, ).;8 



Salts, on crystallizing, vi, 143 

 Samp ford Courtney, Devonshire, storm 



at, ii', .117 



SawjWwind, account of the, iv, CS2 

 Sund, whirlwind of, iv, 254 

 Sandal, description of au ancient, ii, 



144 



Santorini, earthquake at, i, 499 

 Saj> tXndrc river, disappearance of 



the, iii, 8 

 Saros, the ancient period of, i, 3 



'tea, observations on, i, 161 ; of 



Jupiter, 166; of Saturn, 167; of 

 -MIS, 1G8 



Tonomical elements of, i, 

 virellitcs of, 167 ; distance of, 



]'_> \ ; irs of, 193; o a the ring of, 



iv,SS3 



Sauciuons, construction of, vi, 226 

 Saunderson, Dr. account of, iv, 546 

 Saussure, livgroiiietrical obse r\ ations 



of, i \ . 

 , c aroy, on the inh:i!)itnnts of, ii, 412; 



mountaneous nature of, 414 



ilrr, -diirc:- , .f tl.e, iii, -,n 

 Stat/nnony, properties of, v, 188 



iaruroiifjn, on thr wntrrs of, ni, 177 

 Setirdian inountniiis, account of, n, t')J 

 i t I'INC HIM !, .ievnlted, v, 398 



, bridge of, iii, vi I ; cata- 

 ract of, -J,M 

 1 Sthecle, foul air of, iv, 6; the eudi- 

 ometer of, 10 

 Schwartz, the inventor of gunpowder, 



vi, 168 

 Scilli/ islands, changrs in the, ii, 



current at, iii, 



Scio, vineyards in the isle of, v, 

 Scoolkill in America, source of, iii, i ; 

 Scotland, mosses in, ii, 1 C 21 ; minera- 

 logy of, 323; mountains of, 445; 

 remarkable storms in, iv, 204, 330 

 Sea, islands thrown up from the, i, 

 changes of the, ii, 145; on gaining 

 land from the, iii, 374; advances and 

 recessions of, iii, 291; saltness of, 

 307 ; less heated than land, iv, 44 ; 

 mean heat of, 74 ; antient extent of, 

 \, J7; luminous appearances of, vi, 

 117, 127 



Seas, temperature of small, iv, 38 

 Sca-anenome, description of the, v,363 

 Sea-breezes, observations on, iv, 1 :- , 

 Sea-jnnna, account of, v, 374 

 Sea-water, mode of sweetening, iii, 368 

 Seasons, on the change of, iv, 48 

 Seine, account of the, iii, 30 

 Selenitic origin of nu-leoric stones, iv, 



I-', 



Seltzer train; account of, iii, 168 

 Senegal river (ie?.cril> . ., ni, I7j exces- 

 sive heat in, iv, 75 

 Senna tree, account of the, v, 137 

 Serpents in fireworks, coiibtructiou of, 

 vi, 



/, conr.se of the riv r, iii, 34 

 S/utdou-s, names t;'.ke n from, i, 313 

 .'-. ' 'iiiiHtn, cataract on the, iii, _','4 

 Shark, natural history of the, v, 538 

 Shark's teeth or glossopetne described, 



ii, 14J 



Sheep, natural history of, v, twj/ ; va- 

 rieties of, t>7 _' 



Shitriii-ix, rcmi'.rkable. well at, iv, 73 

 Shell, mothcr-of-pcarl, v, ,3(>j; des- 

 cription of the clamp, v, 

 Shells, on fossil, ii, 1 4H ; beds o; 



ter, ll<); in Northamptoushire, i ,o 

 Ships, efect> of ligfatuiog on, iv, ;jt,s 

 Ship icornif description of the, \ 



