LEV 
LIC 
boy with letters in his eye - Ellis 
—* *— « — Account of letters found in the middle of a 
beech tree - - Klein 
Levels. A new contrivance for taking levels 
- - Defaguliers 
———A defeription of a water-level to be fixed to 
Davis’s quadrant, whereby an obfervation may 
be taken at fea in thick and hazy weather 
without feeing the horizon - Leigh 
— The defeription and ufe of an apparatus added 
as an improvement to Davis’s quadrant, con- 
fiding of a mercurial level for taking the co-al- 
titude of fun or ftar at fea without the ufual 
afliftance of the fenfible horizon which fre- 
quently is obfeured - Leigh 
Levers. An account of the advantages of a newly 
invented machine much varied in its effedfs, and 
very ufeful for determining the perfeef propor- 
tion between different moveables a&ing by le- 
vers and wheel and pinion - Le Cerf 
Leyden Bottle. An account of fome new experi- 
ments in eledlricity, containing, i. An en- 
quiry whether vapour be a condudtor of elec- 
tricity. 2. Some experiments to afeertain the 
dire&ion of the eledlric matter in the. dif- 
cnarge of the Leyden bottle. 3. Experiments 
on the lateral explofion in the difeharge of the 
Leyden bottle. 4. The defeription and ufe of 
a new prime conductor, 5. Mifcellaneous 
experiments made principally in 1771 and 
*772. 6. Experiments and obfervations on 
the eledlricity of fogs in purfuance of thofe 
made by Thomas Ronayne, Efq. with a plan 
of an eledlrical Journal, &c. - Henley 
Libella. Letter concerning the infedl called li- 
bella - - Poupart 
— — — Some obfervations on a fort of libella or ephe- 
meron - - - CoUinfin 
— — Some obfervation on the dragon-fly, or libella 
of Penfylvania - -- Bartratn 
— — A further account of the libella or May-fly 
- Bertram 
Lichen. An hiftorical memoir concerning a genus of 
plants called Lichen by Micheli, Haller, and 
Linnaeus, and comprehended by Dilienius un- 
der the terms ufnea, coralloides, and liche- 
noides, tending principally to llluftrate their 
fe ver ai ufe s «- IV ..IP at fin 
269 
I Tranf. 
XXIII 1416 
Abridg. 
v 2 1 34 
XLI 231 
VIII 84s 
XXXIII 165 
VI 271 
XL 413 
0 
VO 
CO 
>— i 
►—4 
1 1 
> 
XL 417 
— 3 6 2 
LXVIII 950 
I 
LXIV 389 
XXII 673 
II 762 
XLIV 329 
XI 844 - 
XL VI 323 
— 845 
— 400 
— 846 
L 652 
Life*. 
