[ i° 8 3 ] 
cerning certain aemofpheres which bodies have round them when properly charged 
with elaftic fluid, p. 507 — 309. Mcafurements, &c. of the great apparatus and ma- 
chinery, p. 31 1 — 313. A report of the Committee appointed by the Royal Society 
to consider of the moll effe&ual method of fecuring the powder-magazines at Purfleet 
againiFth'e efFe&s of lightning, p. 313 — 317. 
Lightning . Points at the upper terminations of conductors more ufeful to fecure build- 
ings from lightning than balls, p. 155 — -159- Rounded conductors fecure buildings 
againft the effects of lightning better than pointed ones, p. 243, &c. Pointed con- 
ductors recommended as the mr ft effectual for this purpofe, p. 314 — 317. Farther in- 
quiries refpeCling fharp and blunt conductors, p. 801-— 820. 823 — 8-55. ' 85 5 — S60. 
999 — ion. 
Lime-water extracts the virtues of oak- bark for tanning much better than plain water, 
p. 120. How to make lime-water, p. 120 — i 23. 129. 
Lind , Dr. h's experiment on firing gun- powder with the Leyden phial, p. 306. 307. 
Lingfitldj Mifs, cured of a mufcular contraction by eleCtricity, p. 97. See Mufcuiar 
ContraSiion. 
Lion. Track of the fbip Lion from England to Davis’s Streights and Labradore, with 
obfervations for determining the longitude by fun and moon, and error of common 
reckoning ; alfo the variations of the compafs, and dip of the needle, as obfervrd during 
the voyage in 1776, p. 10 37. From England to Cape Farewell, ibid. From Cape 
Farewell along the welt coalt of Greenland, p. 10 From Mofketto Cove, Green- 
land, to the end of Davis’s Streights, p. 1061, 1 c 6 j . From Davis’s Streights to the 
coaft of Labradore, p. 1063. Remark concerning the pretended danger of voyages to 
thofe parts, p. 1065. 
Liverpool, the proportionable number of inhabitants that die there annually, p. 154. 
Lloyd, Mr. George, his journal of the quantity of rain that fell at Holnm, near Man- 
chefler, from 176$ to 1769; and at Barowby, near Leeds, from 1772 to 1777, p. 
57C S7 2 * 
Loam foil, favourable to health, p. 218. 
London, the proportionable number of inhabitants that die there annually, p. 154. A 
meteorological journal for the year 1777 kept there, p. 574 — 600. See Tables . 
Longi ude of feveral places, p. 640. 645—654. 655 — 658. Longitude of Bruflels, p. 
665—660. Track of the fhip Lion from England to Davis’s Streights and Labra- 
dore, with obfervations for determining the longitude, &c. p. 1057. See Lion. 
Lort , Rev. Mr. Michael, his letter concerning a remarkable imperfeClion of fight in 
regard to colours, p. 61 1. 
Louvain. Latitude of the Refuge de Vrowperg, Rue des Dominiquaines, at Louvain, p» 
642, 643. Its longitude deduced from obfervations of Jupiter’s fatellites, p. 644, 
Longitude of Louvain, p, 645 — 655. 
Ludlam* 
