LUF 
6 q 4 LUC 
Tranf. 
Luc, J. A. De. Barometrical obfervations on the 
d pth of the mines in the Hartz 
- — — An efiay on pyrometry and areometry, and oni 
phyfieal meafures in general 
- A fecond paper concerning fome barometrical 
meafures in the mines of the Hartz 
-Lucas, Anthony. On Mr. Newton’s coloured 
fpeHrum, and objections to his theory of light 
and colours 
Lucas, Charles. A defeription of the cave of 
Kilcorny, in the Barony of Burren in Ire- 
land - 
— * The figure of forne very extraordinary calcu- 
lous concretions formed in the kidney of a 
woman - 
Lucas, Robert. On the relief he found in the 
Rone from the ufe of Alicant foap and lime- 
water 1 - 
Lucatelli, Joseph. Defeription of the Spanifh 
fembrador, or new engine for ploughing, and 
equal fowing all forts of grain, and harrow- 
ing at once 
Ludlam, Rev. William. An account of a ba- 
lance of a new conRru£lion, fuppofed to be of 
ufe in the woollen manufacture 
— Obfervations on the tranfit of Venus and 
eclipfe of the Sun, June 3, 1769, at Lei- 
ceRer - 
~ — — An account of an occultation of the Rar 
LX VII 401 
LXVIII 4 i 9 
LX IX 485 
Xf 692 
XLI 360 
XLIV 465. 
— 463 
V 1056 
LV 205 
LIX 236 
p Tauri, by the Moon, obferved at Leicefler 
— — - Agronomical obfervations made at LeiceRer 
for determining the latitude of that place 
Occultation of w and y Tauri by the Moon 
~ An eclipfe of the Sun, June 24, 1778, ob 
ferved at LeiceRer 
The principal properties of the engine for turn- 
ing ovals in wood or metal, and of the in- 
Rrument for drawing ovals upon paper de 
monftrated — 
Luffkin, Thomas. On the application of an air- 
pump to cupping glades 
On the u r e of numerical figures in England, as 
old as 1C90 
On the application of the pneumatick engine 
to cupping glaffes 
— Account of fome large bones lately found in a 
gravel-pit near ColcheRer - I 
LX 355 
LXV 366 
~ 37° 
; XVIII 1019 
LXX 378 
XXI 287 
— 408 
XXII 924 
Abridg, 
■i 165 
VIII 668 
XI 1001 
— I coo 
III 265 
1 108 
III 265 
IV 2 1 
Lukens, 
