X. 
I N D E 
Kimendge coal , account of it — Page 549 
Knight (G owin') M. B. his remarks on Mr. Mountaine’s 
account of the extraordinary effedts of lightning 294 
L 
Labour of a kind of Bees , account of a fpecirften thereof, 844 
Landen (Mr. John) new method of computing the fums 
of certain feries, by him — - 553 
Latacunga , a town in South America, deftoyed by an 
earthquake in 1698 — — — 620 
Lightning and thunder, account of the effects of them at 
Rickmanfworth in Hertfordftiire • — — 282 
Lightning, account of fome extraordinary effedts of it, 286 
Lignum Foffile , account of it — 547 
Lifbon, conjectures and obfervations concerning the great 
earthquake there Nov. 1, 1755 — — 566 
Logarithmic folar tables for finding the latitude at fea , con- 
fiderations on a new fet thereof — . ■ — 910 
Lmiinis de abberratione , in fuperficiebus et lentibus fphaeri- 
cis refradtorum — — 944 
Luxation (complete) of the thigh-bone, account thereof, 676 
Luxated thigh-bone reduced , account of one — '■*- 846 
Lyncurium of the ancients, obfervations thereon • — 394 
. . •, fuppofed to be what we now 
call the tourmalin - — — 39^ 
Lyttelton (Rev. Charles) LL. D. letter to him, giving an 
account of fome antiquities found in Cornwall 13 
M 
Macclesfield (Earl of) letter to him, containing experi- 
ments concerning the encauftic painting of the antients 
40 
letter to him, containing remarks on 
the Bovey coal — — 5-1 4 
. defcription of a metalline thermome- 
ter communicated by him — ^ 823 
letter to him, containing fome further 
experiments in eledtricity — — — 896 
6 L 2 Mag- 
