_Needle_, magnetic, its variation, p. 329. _New England_, account of an earthquake felt there, Nov. 18, 1755. p. 1. _Newbury_, in Berkshire, account of the peat-pit near it, p. 109. _Nightshade_, deadly, botanical and medical history of it, p. 62. _Nixon_, Rev. John, A. M. his account of some of the antiquities discovered at Herculaneum, &c. p. 88. ---- ---- ---- ---- his account of the temple of Serapis at Pozzuoli in Naples, p. 166. ---- ---- ---- ---- his dissertation on the antiquity of glass in windows, p. 601. _Norfolk_ Boy, observations on the case of one, who was cured of convulsive fits by the discharge of worms, p. 836. _Number_ of the people of England, observations on it, p. 356, 457, 465. O _Observationes_ anatomico-medicæ de monstro bicorporeo virgineo, p. 311. _Oenanthe_ aquatica succo viroso crocante of Lobel, farther account of its poisonous effects, p. 856. _Oil_, its efficacy, taken as a vermifuge, p. 837. _Operation_, an extraordinary one performed in the dock-yard at Portsmouth, p. 288. _Opuntia_, or prickly pear, effects of it, and of the Indigo plant, in colouring the juices of living animals, p. 296. _Orthoceratitis_, de rariori quadam specie, in Suecia reperta, tractatus, p. 692. _Oram_, Rev. Richard, his account of a boy cured of convulsive fits by the discharge of worms, p. 518. _Oxford_, account of the black assize there, p. 699. P _Paderni_, Camillo, his account of the late discoveries at Herculaneum, p. 49. ---- ---- ---- ---- of an earthquake at Herculaneum, and of some late discoveries there, p. 619. _Palsey_, instance of the cure of it by electricity, p. 392. _Pantheon_, at Rome, account of the alterations making in it, p. 115. _Parsons_, James, M. D. his account of some extraordinary tumours upon the head of a man in St. Bartholomew’s Hospital, p. 350. ---- ---- ---- his account of fossil fruits, and other bodies, found in the island of Shepey, p. 396. _Paralytic_ cases, the effects of electricity in them, p. 481. _Patella_, or Limpet-Fish, found at Bermuda, account of it, p. 859. _Peyssonel_, John Andrew, M. D. his account of a visitation of the leprous persons in the isle of Guadaloupe, p. 38. ---- ---- ---- ---- his observations on the worms that form sponges, p. 590. ---- ---- ---- ---- observations on the Limax non cochleata purpur ferens, p. 585. ---- ---- ---- ---- observations on the Alga marina latifolia, p. 631. ---- ---- ---- ---- observations on a slight but very particular earthquake, p. 645. ---- ---- ---- ---- observations on the Manchenille apple, p. 772. ---- ---- ---- ---- observations on the Corona Solis Marina Americana, or American Sea-Sun-Crown, p. 843. _Peat-pit_, account of one near Newbury in Berkshire, p. 109. _People_ of England, concerning the number of them, p. 457. ---- ---- ---- an answer to Mr. Forster’s letter, concerning their number and increase, 465. _Peking_, a description of the plan of it, p. 704.