548 
LEU 
LEUCA'TAS or LEUC A'TE, in ancient geography, a 
promontory of Afia, in Bithvnia, and one of thofe which 
formed the gulf called Affacenus Sinus, according to Pliny. 
LEUC A'TE, a town of France, in the department of 
the Aude, remarkable for allege, which it endured in the 
year 1637, againft the Spaniards, who were defeated by 
marfhal Schomberg; the fortifications have been demo¬ 
lished. It is fituated on the north fide of a large lake, to 
which it gives name r feventeen miles louth of Narbonpe. 
Lat.42. 54. N- Ion. 3. 7. E. 
LEUC A'TE, a lake of France, which takes its name 
from the town fo called, and difcharges itfelf into the 
Mediterranean by two dreams. It is fituated partly in 
the department of the Aude, and partly in that of the 
Eaftern Pyrenees. 
LEU'CE, a fmall ifiand in the Euxine fea, of a trian¬ 
gular form, between the mouths of the 1 Danube and the 
Borylihenes. According to the poets, the fouls of the 
ancient heroes were placed there as in the Elyfian fields, 
where they enjoyed perpetual felicity, and reaped the re¬ 
pute to which their benevolence to marfkind, and their 
exploits during life, teemed to entitle them. From that 
cireumftance it has often been- called the Ifiand of the 
Bleffed, &c. According to fome accounts, Achilles cele¬ 
brated there his nuptials with Iphigenia, or rather Helen, 
and fhared the pleafures of the place with the manes of 
Ajax, &c. 
LEU'CE,/. [Gr. white.] A term nearly fynonymous 
with the vitiligo of the Latins, fignifying a leprous affettion 
of the fkin, of a white colour, with a lofs of fenfibility 
In the parts affected, the hair at the fame time becoming 
white, and failing off. This is fuppofed to have been 
the jewifi) Leprosy. See tlnt article, p. 509. 
LEU'CHARS, a town of Scotland, in Fifefhire, near 
the German Ocean : fix miles north of St. Andrew’s. 
LEU'CHTENBERG, a town of Bavaria, and capital 
of a landgraviate, to which it gives name. The landgra- 
viate lies in the Nordgau, and belongs to the elector of 
Bavaria ; who on account of it enjoyed a feat and voice 
in the college of imperial princes. Its afieflinent in the 
matricula of the empire was fix horfe and 14 foot, or 128 
florins; and to the imperial chamber 135 rix-dollars, 26! 
'kruitzers : thirty-fix miles eaff of Nuremberg, and thir¬ 
ty-nine north of Ratifbon. Lat.49.35-N. Ion. 12.11. E. 
LEU'CHTENBERG, a town of Saxony, in the prin¬ 
cipality of Altenburg: four miles north-eaff of Orlamunda. 
LEU'CHTENBERG. See Leutenberg. 
LEU'CHTERSHAUSEN, a town of Germany, in the 
marggravate of Anfpach, on the Altmuhl : leven miles 
welt of Anfpach, and thirty-feven louth-fbuth-eaft of 
Wurzburg, 
LEU'CI, a people of Gaul, between the Mofelle and 
the Maefe. Their capital is now called Tout. Caf. B. G. 
c. 40. -Mountains on the weft of Crete, appearing at 
a difiance like white clouds, whence the name, 
LEUCIPPIDES, the daughter of Leucippus. See 
Leucippus. 
LEUCIP'PUS, a brother of Tyndarus, king of Sparta, 
who married Philodice daughter of Jtiachus, by whom 
lie'had two daughters, Hilariaand Phoebe, known by the 
patronymic of Leucippides. They -were carried away by 
their coufi'ns Caftor and Pollux, as they were going to ce¬ 
lebrate their nuptials with Lynceus and Idas. Ovicl. Fajl. 
LEUCIP'PUS, a for. of Xanthus, defcended from Bel- 
leroph-on. He became deeply enamoured of one of his 
filters ; and, when he was unable to check or reftrain his 
unnatural paffion, he relolved to gratify it. He ac¬ 
quainted his mother with it, and threatened to murder 
himfelf if fhe attempted to oppofe his views or remove 
his affeftion. The mother, rather than lofe a fon whom 
fhe tenderly loved, cherifhed his paffion; and by her con- 
lent her daughter yielded herfejf to the arms of her bro- 
■ tiTtr. Some time after, the father refolved to give his 
daughter in marriage to a Lycian prince. The future 
liufband was informed- that the daughter of Xanthus fe- 
L E U 
cretly entertained a lover; and he communicated the in¬ 
telligence to the father. Xanthus upon this fecretly 
watched his daughter; and, when Leucippus had intro¬ 
duced himfelf to her bed, the father, in his eagernefs to 
difcov.er the feducer, occafioned fome noife in the room. 
The daughter was alarmed, and as flic attempted to efcape 
fhe received a mortal wound from her father, who took 
her to be the lover. Leucippus came to her aflifiance, and 
ltabbed his father in the dark, without knowing who he 
was. This accidental parricide obliged Leucippus to fly 
from his country. He came to Crete, where the inhabi¬ 
tants refufed to give him an afylum, when acquainted 
with the atrocioufnefs of his crime; and he at lalt came 
to Ephefus, where he died in the greateft mifery and re- 
morfe. Hermejianax apud Part/ien. c. 5. 
LEUCIP'PUS, a ion of CEnomaus, who became ena¬ 
moured of Daphne, and to obtain her confidence dif- 
guiled himfelf in a female drefs, and attended his miftrefs 
as a companion. He gained the affections of Daphne by 
his obfequioufnefs and attention ; but his artifice at lalt 
proved fatal ; for, when Daphne and her attendants were 
bathing in the Ladon, the fex of Leucippus was difco- 
vered, and he perifhed by the darts of the females. Par- 
then. Erotic, c. 15. 
LEUCIP'PUS, a celebrated Greek philofopher, of the 
Eleatic left, and a difciple of Zeno, who fiourifhed under 
the eighty-eighth Olympiad, or about the year 428 B. C. 
The ancients are not agreed concerning the place of his 
birth; fome making him a native of Abdera, others of 
Berea, others of Miletus, and others, among whom is 
Diogenes Laertius, of Elea. They almoft all concur, 
however, In attributing to him the firft idea of the ato¬ 
mic fyfiem, which was improved by his difciple Demo¬ 
critus, and carried to all the perfection which a fyfiem fo 
fundamentally defective would admit of by Epicurus, 
Fie wrote a trqatife concerning nature, now loft, from 
which the ancients probably cclleCted what they relate 
concerning his tenets. Diffatisfied with the metaphyfical 
fubtleties by which the former philofophers of the Elea¬ 
tic fchool had confounded all evidence from the femes, he 
refolved to examine the real constitution of the material 
world, and enquire into the mechanical properties of 
bodies; that from thefe he might, if poffible, deduce 
fome certain knowledge of natural caufes, and hence he 
able to account for natural appearances. His great ob¬ 
ject was, to reftore the alliance between reafon and the 
fenfes, which metaphyllcal fubtleties. had 'diffolved. For 
this purpofe he fuggefted the doctrine of indivifible atoms, 
pollening within themfelv.es a principle of motion ; which 
was adopted by his difciple Democritus, who united with 
his nvafter in modifying his fyfiem. It is true that Anax¬ 
agoras, Empedocles, Heraclitus, and oilier philofophers, 
before their time, had confidered matter as divifible into 
indefinitely fmall particles ; but Leucippus and Demo¬ 
critus were the fir It who taught that thefe particles were 
originally deftitute of all qualities except figure and mo¬ 
tion, and, therefore, may jultly be confidered as the 
joint authors of the atomic fyfiem of philofophy. The 
following fummary of the doCtrine of Leucippus, drawn 
up by Dr. Enfield, 'will exhibit the infant ftate of the ato¬ 
mic philofophy, and at the fame time fufficiently expofe 
its abfurdity. “The tiniverfe, which is infinite, is in 
part a plenum, and in part a vacuum. The plenum contains 
innumerable corpufcies or atoms, of various figures, 
which, falling into the vacuum, ftruck againft each other; 
and hence arofe a variety of curvilinear motions, which 
continued till, at length, atoms of fimilar forms met to¬ 
gether, and bodies were produced. The primary atoms 
being fpecifically of equal weight, and not being able, on 
account of their multitude, to move in circles, the 
frnaller rofe to the exterior parts of the vacuum, whillfc 
the larger, entangling themfelves, formed a fpherical 
fhell, which revolved about its centre, and which in¬ 
cluded within itfelf all kinds of bodies. This central 
nials was gradually increafed by a perpetual aceeffion of 
