[ 4 93 ] 
I. 
Ice, the reafon why it fpreads all over the water, inttead of forming a folid lump in one 
part, p. 3 1 1. 
Ippolito , Count Francefco. See Earthquakes. 
K. 
Kcvmpfer, See Ambergrlfe. 
Kir-wan, Richard, Efq. Set Mineral Acids, 
Knowles , Sir Charles. See Rcjijlance of the Air. 
L. 
Lande, M. De la. See Solar Spots , Sun, and Solar Syjlem. 
Landerbeck, Nicolao. See Lineas Curvas. 
Laxmann , M. Erich. See QuickJHver. 
Lightning, letter from Mr. Edward Nairne, containing an account of wire fhortened 
by lightning, p. 223. Courfe of the lightning from a leaden pipe without the 
houfe to the wire of a night-bolt within, ibid. State of the wire before the accident* 
ibid. And after, p. 224. When it was fhortened fome inches, ibid. Reafon why 
wires, if not melted, are generally broken when the lightning has pafled, ibid. 
Experiment on iron melted into globules by the lightning, p. 225. And on pieces 
of fteel flruck off by flriking a light, ibid. 
Lineas curvas , methodus inveniendi, ex proprietatibus variationis curvaturte, audlore 
Nicolao Landerbeck, mathef. profefT. in acad. Upfalienfi adjun&o, p. 456. Pars 
prima, ibid. Theorema I. p. 457. Schol. 1. p.458. Schol. 2. p. 459. Exempl. 
I. p.460. Exempl. 2. ibid. Exempl. 3. p. 461. Theorema II. p. 462. Cor. 
1. ibid. Cor. 2. p. 463. Schol. 1. ibid. Schol. 2. ibid. Theorema III. p. 
465. Cor. ibid. Schol. 1. ibid. Schol. 2. ibid. Exempl. 1. p. 466. Theorema 
IV. p.467. Schol. x. ibid. Exempl. 1. p. 46S. Exempl. 2. p. ibid. Theorema 
V. p. 469. Exempl. x. p. 470. Theorema VI. p. 471. Schol. ibid. Exempl. 
ibid. Theorema VII. p. 472. Schol. p. 473. Exempl. ibid. 
Lloyd , John, Efq. See Earthquakes. 
Lunar Iris, an account of feveral, by Marmaduke Tunftall, Efq. p. 100. Defcrip- 
tion of one fee n at Wycliffe, near Greta Bridge, Yorkfhire, Feb. 27, 17S2. Only 
twodeferibed with any accuracy; one by Plot, and another by Thorefoy, p. ioo, 
101. State of the weather when the above appeared at Wycliffe, p. 101. A fecond 
feen at the fame place, July 30, and a third, Ocl. 18, 1782, p. 101, 102. The 
latter perhaps the molt extraordinary one ever feen, p. 102. Defcription thereof, 
ibid. By what they feem to be occafioned, ibid. S Arijiotle. 
Lucid dijk. See Georgium S.dus. 
4 
Uandingas, 
