LOG 
LO'CO ROTON'DO, a town of Naples, in the pro¬ 
vince of Bari: eleven miies fouth-fouth-eaft of Monopoli. 
LOCOCES'SION, f. in law, the aft of giving place. 
LOCOMO'TION, f. [from the Lat. locus, place, and 
noveo, to move.] The power of changing place ; tiie aft of 
changing place.—All progreffion, or animal locomotion , is 
performed by drawing on, or impelling forward, forne 
part which was before at quiet. Brown's Vulgar Errors. 
LOCOMO'TIVE, aclj. Changing place; having the 
power of removing or changing place.—An animal can¬ 
not well be defined from any particular organical part, 
nor from its locomotive faculty ; for iome adhere to rocks. 
Arbuthnot. 
In the night too oft he kicks. 
Or fnows his locomotive tricks. Prior. 
LOCOMOTIV'fTY, f. Power of changing place.—- 
The molt fuperb edifice, that ever was conceived or con- 
ftrufted, would not eqnal the fmalleit infeft, bleft with 
fight, feeling, and locomotivity. Bryant. 
LOCONTA'I, a town of Upper Siam: fixty miles 
north of Porfelon. 
LO'CRI, or Lo'crians, in ancient geography, a peo¬ 
ple who are Paid to have derived their name from an an¬ 
cient hero called Locris, or Locros, whofe fon Opus 
founded a town under his own name. Thefe people 
formed four diltinft divilions, with appropriate furnames, 
the three fir If of which, viz. Locri Ozoli, Locri Epicne- 
midii, and Locri Opuntiani, were fettled in Greece; the 
fourth divilion, denominated Epizephyrii, inhabited Magna 
Graecia, near the promontory of Zephyrium. The Ozoli 
occupied a confulerable extent of country weft .of the 
Phocide, along the gulf of Corinth. The Epicnemidii de¬ 
rived their name from Mount Cnemis, about which they 
dwelt; the Maliac Gulf being on the eaft, Mount Oeta 
on the north, the Phocide on the weft, and the Locri 
Opuntiani on the fouth, whofe territory was of final! ex¬ 
tent. The Epizephyrii were fituated near the promontory 
of Zephyrium, and were diftributed into two clalfes, dif- 
tinguilhed by their name and their fituation. Their town, 
Locri Epizephyri, was fituated on a hill near the above- 
mentioned promontory. Some fay that it was founded at 
the fame time with Cyzicus, under the reign of Tullus 
Hoftilius ; but Strabo dates its origin a little after Crotona 
and Syracufe, about the year 757 before our era. It was 
very flourifhing, when Dionyfius the younger, having 
been driven from Syracufe, praftifed there all forts of vio¬ 
lence. But the LoCrians, having recovered their liberty, 
expelled the garrifon, and took ample vengeance of the 
tyrant. Epherus, fays Strabo, reports, that Zaleucus 
formed the laws of the Locrians from thofe of Crete, 
Sparta, and Athens, one of which eftablifhed a conformity 
of puniftnnent to crimes, whereas before they were arbi¬ 
trary and depended upon the will of the judge. The Lo¬ 
crians had built upon the coaft a temple of Proferpine, 
which u’as pillaged by Pyrrhus when he carried his arms 
into Italy. The town was not better treated by the Roman 
garrifon under the orders of Flaminius. In the year 539 
of Rome, the Locrians, having devoted themfelves to the 
Brntians and Carthaginians, by this conduft incenfed the 
Roman republic ; fo that they fent troops againft them, 
and took their city in the year 54.9. A little after, how¬ 
ever, they recovered their liberty. The fequel of the 
hiftory of the Locrians is not known ; but an inftance of 
their valour has been recorded which deferves to be men¬ 
tioned. In a war between them and the Crotoniates, 
10,000 Locrians, with a few additional troops, defeated 
130,000 of the enemy near the river Sagra ; an event fo 
marvellous, that it became proverbial in giving atteftation 
to a faft thought incredible : Afaiisga. roiv sect 2 ayga, ; i. e. 
“ It is more true than the battle of Sagra.” 
LO'CRI, or Locris, a town of Italy, in Brutium. It 
was founded, as mentioned in the preceding article, by a 
colony of Greeks called Locrians. Now Motta di Bruzzano. 
LO'CRIAN, /. An inhabitant of Locris. 
Vol. XII. No. 879. 
LOG 877 
LO'CRIAN, adj. From or appertaining to Locris. In 
ancient mulic, the feventh fpecies of diapafon. It was 
alfo called hypodorian, and common. 
LOCULAMEN'TUM, f. in botany, denotes a cell or 
partition, in a leed-pod, for the feed of a plant. 
LOC'ULTJS, f. A word ufed in old records fora coffin. 
In botany, the little cell of an anther, containing the pollen. 
LO'CUS, J. [Latin.] A place. 
Locus, in geometry, denotes a line by which a local 
or indeterminate problem is folved. If a point vary its 
pofition, according to fome determinate law, it will tie- 
fcribe a line, which is called its locus : or a locus is a line, 
any point of which may equally folve an indeterminate 
problem. This, if a right line (office for the conftruftiont 
of the equation, is called locus ad rcElum ; if a circle, locus 
ad circulum ; if a parabola, locus adparabolam ; if an ellipfis, 
locus ad ellipfim ; and fo of the reft of the conic feftions. 
The loci of fuch equations as are right lines, or circles, 
the ancients called plane loci; and of thofe that are para¬ 
bolas, hyperbolas, See. /olid loci. Apollonius of Pergs. 
wrote two books on plane loci, in which the object was, to 
find the conditions under which a point, varying in its 
pofition, is yet limited to have a right line, or a circle 
given in pofition. Thefe books are loll ; but attempts 
have been made at reftorations by Schooten, Fermat, and 
R. Simfon ; the treati(e De Lccis Planis, of the latter, 
publifiied at Glafgow, 1749, is a very excellent perform¬ 
ance, in all refpefts worthy of its celebrated author. Be- 
fides the above-mentioned writers, the doftrine of loci 
has been treated of by various other mathematicians, as 
Craig, Maclaurin, Des Cartes, De PHopital, &c. the lat¬ 
ter of whom has two chapters on this fubjeft in his'Conic 
Seftions. Leflie in his Geometry has alfo a chapter on 
plane loci, which contains feveral of the moft fimple and 
interefting propofitions of this kind. See the article Geo¬ 
metry, vol. viii. 
Locus, in mufic, was anciently ufed to fignify the in¬ 
terval between one degree of acutenefs or gravity of found 
and another. The Greeks ufed the word tottoc in the 
fame fenfe, for the fpace through which the voice moved. 
Locus, in rhetoric, a topic, or head, whence argu¬ 
ments are brought to prove the queltion in hand. Some 
of thefe are called loci communes, or common topics, as 
being common to all forts of argument; thus, whether a 
thing be poffible or impoffible, more or lefs than 1'ome- 
thing elfe, &c. 
LO'CUST,/: [ locujla , Lat.] A devouring infeft. See 
Gryllus, vol. ix.—The Hebrews had feveral forts of lo- 
cujls, which are not known among us: the old hiftorians 
and modern travellers remark, that locujls are very nu¬ 
merous in Africa, and many places of Afia ; that fome- 
times they fall like a cloud upon the country, and eat up 
every thing they meet with. Mofes deferibes four forts 
of locujls. Since there was a prohibition againft ufing lo¬ 
cujls, it is not to be queftioned but that thefe creatures 
were commonly eaten in Paleftine, and the neighbouring 
countries. Calmet. —Air replete with the (teams of animals 
rotting, has produced peftilential fevers ; fuch have like- 
wife been raifed by great quantities of dead locujls. Ar- 
buthnot on Air. 
LO'CUST, a village in Hertfordffiire, nearllemel-Hemp- 
fted. 
LO'CUST, /. in botany. See CERATOKiA.and Meli- 
ANTHUS. 
LO'CUST (Bafe). See Hymentea. 
LOCUST CREE'K, a river of Kentucky, which runs 
into the Ohio in lat. 38. 37. N. Ion. 84. 15. W. 
LOCUST CREE'K, a river of Kentucky, which runs 
into the Licking in lat. 38. 4. N. Ion. 83. 45. W. 
LO'CUST-EATERS. See Acridophagi, vol. i. p. 94, 
and the article there cited. 
LO'CUST-TREE. See Ceratonia, Hymentea, and 
Robinia. 
LO'CUST-TREE (Honey). See Gleditschia. 
LOCUS'TA, a celebrated woman at Rome in favour 
10 O yvitii 
