ELO 



ELY 



Of these there are several sorts : thus, 

 if a yi = b -r j (a x) it is a cubical elip- 

 toid ; and if a y* = b x- (a jr) 1 , it de- 

 notes a biquadratic elliptoid, which is an 

 ellipsis of the third order in respect of the 

 appollonian ellipsis. 



ELL1SIA, in botany, so called in me- 

 mory of John Ellis, F. R. S. a genus of 

 the Pentandria Monogynia class and or- 

 der. Natural order of Luridse. Borra-. 

 gineae, Jussieu. Essential character : co- 

 rolla funnel-form, narrow? berry dry, 

 two-celled, two valved ; seeds two, dot- 

 ted, one placed over the other. There is 

 only one species, viz. E. nyctelea, cut- 

 leaved ellisia, a native of Virginia. 



ELM. See ULMUS. The elm is very 

 serviceable in places where it may lie con- 

 tinually dry or wet in extremes. Ac- 

 cordingly, it is proper for water-works, 

 mills, the ladles and soles of the wheel- 

 pipes, pumps, aqueducts, pales, and ship- 

 planks beneath the water-lines. It is also 

 fuse for wheel-rights, handles for sin- 

 gle saws, axle-trees, and the like. The 

 clearness of the grain makes it also fit 

 for all kinds of carved works, and most 

 ornaments relating to architecture. 



ELOCUTION, in rhetoric, the adapt- 

 ing words and sentences to the things or 

 sentiments to be expressed. It consists 

 of elegance, composition, and dignity. 

 The first, comprehending the purity and 

 perspicuity of language, is the founda- 

 tion of elocution. The second ranges the 

 words in proper order ; and the last adds 

 the ornaments of tropes and figures, to 

 give strength and dignity to the whole. 



ELOGY, a praise or panegyric bestow- 

 ed on any person or thing, in considera- 

 tion of its merit. The beauty of elogy 

 consists in an expressive brevity. Elogi- 

 ums should not have so much as one epi- 

 thet, properly so called, nor two words sy- 

 nonirnous. They should strictly adhere to 

 truth ; for extravagant and improbable 

 elogies rather lessen the character of the 

 person or thing they would extol. 



ELONGATION, in astronomy, the di- 

 gression or recess of a planet from the 

 sun, with respect to an eye placed on our 

 earth. The term is chiefly used in speak- 

 ing of Venus and Mercury, the arch of a 

 great circle intercepted between either 

 of these planets and the Sun being called 

 the elongation of that planet from the 

 Sun. 



But here it is to be observed, that it is 

 only a circle which has the sun for its 

 centre; that the greatest elongation is in 

 a line touching the planet's orbit. For 

 in an elliptic orbit it may be, that tke 



elongation from the sun may grow still 

 greater, even after it has left the place 

 where the line joining the earth and 

 planet touches the orbit. For after that, 

 the true distance of the planet from the 

 Sun may increase, whilst the distance ef 

 the Sun and planet from the earth does 

 not increase, but rather decrease. But 

 because the orbits of the planets are near- 

 ly circular, such small differences may 

 be neglected in astronomy. The greatest 

 elongation of Venus is found by observa- 

 tion to be about forty-eight degrees, and 

 the greatest elongation of Mercury about 

 twenty-eight degrees, upon which a<S- 

 count this planet is rarely to be seen with 

 the naked eye. 



ELONGATIOK, angle of, is an angle 

 contained under lines drawn from the 

 centre of the sun and planet to the centre 

 of the earth. 



ELOPEMENT, is when a married wo- 

 man of her own accord departs from her 

 husband, and dwells with an adulterer; 

 for which, without voluntary reconcilia- 

 tion to the husband, she shall lose her 

 dower by the statute cf Westminster, 

 2. c. 34. Except that her husband will- 

 ingly, and without coercion of the church, 

 reconcile her, and suffer her to dwell 

 with him, in which case, she shall be re- 

 stored to her action, 13 Ed. I. st. 1. c. 34. 

 By eloping in this manner, or living in 

 adultery apart from the husband, he is 

 discharged of her future debts, and no 

 longer liable to support her. 



ELOQUENCE, the art of speaking well, 

 so as to affect and persuade. Cicero de- 

 fines it the art of speaking with copious- 

 ness and embellishment. Eloquence and 

 rhetoric differ from each other, as the 

 theory from the practice ; rhetoric being 

 the art which describes the rules of elo- 

 quence, and eloquence that art which 

 uses them to advantage. See RHETO- 

 RIC. 



ELOPS, in natural history, a genus of 

 fishes of the order Abdominales. Gene- 

 ric character : head smooth, edges of the 

 jaws and palate rough, with teeth ; gill 

 membrane with thirty rays, and armed on 

 the outside in the middle with five teeth. 

 The saury elops, the only species, bears 

 a considerable resemblance to a salmon, 

 from which it differs principally in want- 

 ing the fleshy back fin. It inhabits the 

 shores of Carolina and the West Indies; 

 in Jamaica it passes by the name of the 

 sun-fish. It is in general about fourteen 

 inches long. 



ELYMUS, in botany, lymcgrass, a ge- 

 mts of the Triandria Digynia cla'ss and 



