INDEX. 



/ /'< u r 'iin, nr'|>< Ttn-s of, v, 



i|iiii>n of the rivrr, i 

 EldfH hole, Derbyshire, descrilx d, ii, 

 80 



-ir fluid, nature and pr<>; 



of, iv. J7<i; kite, in\( ntion of, 30") 



Electrical torpedo, described, v, 488; 



i:\mnntr, \. 



F.lntriiitu, earthquakes ascril>rd to, 

 ii, IS; communication and \clocit \ 

 of, iv, 27, r > ; atmospherical, 497; of 

 thunder and lightning, 300; int-qui- 

 librium, vi, 17 ; in motion, 26 

 Electrometer, construction of, vi, 41 

 Electrophone, description of, vi, 39 

 Elephant, fossil remains of, ii, !">.', l so, 

 192 ; natural history of, v, 05 ; me- 

 thod of catching, 652 

 Elizabeth, ijtieeu, her encouragement 



of chemistry, vi, 10 

 Elk, fossil remains of, ii, 203 

 Embankments, on, iii, 375 

 Emen or cassowary, described, v, 616 



irllhiff,thc art of, vi, 419 

 Encaustic painting, the art of, vi, 425 

 Engraving, art of, vi, 440 

 Epicurus, doctrines of, i, 215 

 Epicyclet, defined, i, 15 

 Epsom mineral waters, iii, 178 

 Equator, definition of, i, 307, 309 

 Equilibrium, on electricity in, vi, 17 

 Equinoxes, on the motion of, 1, 16 

 Eratosthenes, astronomy of, i, 10 ; geo- 

 graphy of, i, 293 



Erckern, chemical works of, vi, 9 

 Eridanns, description of the, iii, 77 

 Erie, description of lake, iii, 248 

 Etesian wind, described, iv, 217 

 Etna, ^rneral description of; i, 403 ; 

 eruptions of, 406 ; changes and 

 present state of, 413 

 Eudiometers, description of, iv, 8, 12 

 Endows, opinions of, i, ]."> 

 Euyiinean hills, drscri! ('<!, ii, 481 

 Evaporation, observations on, iii, '2 ; 

 inuicral waters examined by, iii, 

 205; experiment.-, on, iv, ISO; cause 

 of, 137 



Euphrates, on the river, iii, 12 

 Excavations, remarkable ones, ii, 7fi 

 jchalationx,un luminous, iv, 494; on 

 the Appettnines, 501 



on tin- law of, iv, 52 

 J'urttdr.i, on basaltic, i, 



Fiiruln. or spots <m the sun, described* 



i, 1 t 



Fairy rings, cause of, v, 316 



Fata morgana, des.-i iptimi of, i\ . 



I't-lliini colliers, dreadful accident at, 

 ii. s'u 



Feltspurs, description of, i, ' 1 7 



Fernelins, ii in nn-nt of Uie 



earth, i, 3<8 



Ferrnyinotis waters, account of, iii, 

 184 ; on the action of, ib. 



Fer, earthquake at the city of, ii, 

 41,42 



Fichtelbery mountains in Germany, 

 described, ii, 409 



Fieltlfaru, natural history of, v, 



Fig tree of the scriptures, described, 

 v, 48 ; account of the connnoi 



Finyal, description oftheca; 



Fire balls, remarkable iiist;:ncs of, iv, 

 457; observations on, 460 ; the con- 

 struction of artificial, vi, 235 



Fires observations on subterrai; 

 i, 263, 330 ; of different colours, \ i. 

 242 



Fireworks, the art of constructing, \ i, 

 212 



Fish, destroyed by mcphitic vapour, 

 i, 399 



, description of the flying, v, 526 



Fishes, shower of, iv, 166 



, natural history of, v, 339 ; par- 

 ticular account of, ib. 484 ; phos- 

 phorescent quality of, vi. 113 



Flanders in Perthshire, peat mosses in, 

 ii, 129 



Flax, description of the mountain, ii, 

 391 ; the New Zealand, v, 285 



Flcotz formations of rocks, on the, i, 

 325 



Floodgates, construction of, iii, 382 



Florida, account of the (>ulph of, iii, 

 355 



Flowers, classifications of, v, 8 



Flora moss, in Kincardineshire, ii, 131 



Flnid, on the electric, iv, 270; on tilt- 

 attraction of, vi, 1J 



Fluids, on the motion and resistance 

 of, iii, 387 ; on their change to so- 

 lids, iv, 53 ; made luminous, 6l 



