INDEX. 



17 



Ovcego, course of the river, iii, 248 

 Ottaiano, ruin of the town of, i, 365 

 Ovens, account of volcanic, i, 481 

 OJT, natural history of the, v, 676 

 Oxfordshire, agitation of witters in, ii, 53 

 Oi -net/ isle in Kent, formation of the, 



iii, 293 



Ox's eye indicative of a storm, ii, 10 

 Oxygen gas, experiments on, iv, 0; 



emitted liy plants, 'J I 

 ().nnnnriaticacid, composition of, iv,24 

 Oyster shells, remarkable bedsof, ii, 1 49 

 Pacific ocean, observations on the, iii, 



289 ; temperature of the, iv, 38 

 Paderboru, of the springs of, iii, 83 

 Padua, meteor seen at, iv, 417 

 Painting, history of the art of, vi, 410; 



on glass, 412; encaustic, 425; of 



paper hangings, 430 

 Pallas, on the planet, i, 193 

 Pallas, professor, account of, ii, 457 

 Palm oil tree descrited, v, 1 19 



wine, how prepared, v, 1 19 



Palma, account of the isle of, i, 409 

 Palmyra, situation of, iv, 8 1 

 Pangeeus, description of mount, ii, 402 

 Paper, art of making, vi, 328 



of the ancients, vi, 386 



: nautilus, description of, v, 365 



tree of Japan described, v, 282 



Papyri, discovery of ancient, ii, 246 

 Parallax of the tixed stars, i, 58 

 Parallels, on celestial, i, 310 

 Paraselenites, account of, vi, 504 

 Parhelia, observations on, i v, 506 ; seen 



at Danl/ic, 521; at Sudbury, 523; 



at Lyndon, 524 

 Paris, subterranean caves at, ii, 1 13 ; 



on ,the petrifactions of, 205 

 Parnassus, account of mount, ii, 408 

 Parrot, natural history of the, v, 591 

 Parthenium, of the promontory of, ii,452 

 Pari/s mountain, Anglesey, described, 



ii, 318 

 Pasaic river, North America, course 



of, iii, 225 

 Pasto, in South America, described, 



i, 488 



Pataxet, iron works on the, ii, 3l6 

 1'arements, discovery of Roman, ii,220, 



266 

 Peak of Teneriffe, journey to, i, 47 1 



of Derbyshire described, ii, 83 



Peaks, of mountains on the, ii, 411 



VOL. VI. 



Pearl muscle, description of, v, 369 ; 

 fisheries, account of the, 370 ; nau- 

 tilus, v, 366 



Prat mosses, account of, ii, 129 

 Pebbles, origin of, ii, 3K6 

 PeclJiam, meteor seen at, iv, 442 

 Peerless poo!, phenomenon in, ii, 51 

 Peijttis lake, description of, iii, 232 

 Pclion, description of mount, ii, 407 

 Pembrokeshire, exhalations in, iv, 502 

 Pendulum, on the invention of the, 

 i, 30 ; shortened at the equator, 154 

 Pendulums, sympathy of two, iv, 547 

 Penens, description of the stream of, 



ii, 407 

 Penman-mawr in Wales, height of, 



ii, 443 



Pen-park hole, in Gloucestershire, de- 

 scribed, ii, 91 

 Peninsula defined, i, 31.5 

 Pennsylvania, earthquake in, ii, 45 

 Pepper plant, description of, v, 131; 

 tree of Jamaica, v, 125 



Perch, natural history of the, v, 513 

 Perihelion of the comet, on the, i, 138 ; 



of the planets, 148 

 Peritfd, account of the, i, 314 

 Persia, on the deserts of, ii, 482 

 Persians, on the learning of the, vi, 377 

 Perthshire, on the mosses of, ii, 129 

 Perugia, description of the lake of, 



iii, 241 



Peruvian bark, account of the, v, 140 

 lantern fly described, v, 383 



Peru, no rains in, iv, 15 1 

 Petersburgh, situation of, iii, 22 

 Petrifactions, remarks on, ii, 144; on 

 vegetable, 146; shells and zoo- 

 phytes, 148; singular species of, 150; 

 bones, 151 ; in the suburbs of Paris, 

 205 



Petrifying springs in Ireland, iii, 276 

 Pewter, composition of, vi, 299 

 Peifrerius, his system of preadamites, 



i, 250 



Pharsalia, on the plains of, ii, 407 

 J J henicians, knowledge of letters among 



the, vi, 368 



Philodemus, account of, ii, 255 

 Phi Pl>s, Capt. voyage of, iv, 101 

 Phlegraan field described, i, 513 

 Phlogisticateil alkali, on the, iii, HH 

 Phosphorescent stones, account of, ii,385 

 Phosphorus applied to the abstraction 



