jEGO 



AKR 



leaflets: the stamina have three capillary 

 filaments with oblong anthers ; tlic pistil- 

 lnni is a turbinate germcn; no pericardi- 

 um ; the seeds are oblong, convex on one 

 side, grooved on the other, with the in- 

 ner valve of the corolla adhering to it, and 

 not opening 1 . There are si \ species. 



-/EGINKTA, in botany, a genus of the 

 Didynamia Angiospermiaclassand order: 

 calyx one-leafed, spathaeeous; corolla 

 campanulate, two-lipped; capsule many 

 eelh-d: one species, viz. the IE. Indica, 

 found at Malabar. 



JEGIPHII.A, frnitt's-frit'iiil, a genus of 

 the Tftrandria Monogynia class and or- 

 der, and the natural order of Vitices: the 

 calyx is aone-leafedpcrmanentpcrianthi- 

 uni; the corolla is one-petalled, and long- 

 er than the calyx ; the stamina are capil- 

 lary filaments, inserted into the mouth of 

 the tube; the pistillum is a roundish su- 

 perior germ, style capillan , de<. ply bifid, 

 and stigmas simple ; the pericarpium is a 

 roundish two-celled hem, surrounded 

 with a permanent calyx; and the seed is 

 cither in pairs or solitary. There are se- 

 ven species, natives of the \V. Indies, 

 i-hieflv of Jamaica. 



botany, a gcmisof the Poly, 

 andria Monogynia class and order: cal\ \. 

 h've-lobed; petals five; lurry globular, 

 many celled, with numerous seeds in each. 

 One species, vi/. the marmclos, a tree 

 with thorny branches; fruit delicious to 

 the taste, and exquisitely fragrant . 

 imbedded in an extremely tenaceous 

 transparent gluten. 



JEGOPODTM, in botany, a genus of 

 the Pentandria Digynia class of plants ; 

 the general corolla whereof is iniiform ; 

 the single flowers consist each of five, 

 oval, concave, and nearly equal petals ; 

 the fruit is naked, ovato-oblong, striated, 

 and separable into two parts; the seeds 

 are two, ovato-oblong, and striated, con- 

 vex on one .side, and plain on the other. 

 There is but one spe< : . poda- 



graria, gout-weed, which is a perennial, 

 creeping- weed, with white flowers, that 

 appear in May or June. It has been used 

 in eases of spoilt, whence it derives its 

 name. It is noilcd tor greens, : ""' eaten 

 in Sweden; cows, sheep, and goals, eat it. 

 It is found amongrubbish in shady places, 

 and in heiL 



EGOPRICON, in botany, a genus of 

 (li<- Monandria Trigynia class and order : 

 the male flowers are small, in an ovate 

 ftment; their calyx one-leafed; no corol- 

 la, the stamina of one filament longer than 

 the calyx, with an ovate anther; the fe- 

 male flowers are on the same plant, and 



solitary; the calyx and corolla are the 

 same as the male; the pistillum ha- 

 ovate superior germ, three divarir 

 styles, with simple permanent .stigmas; 

 the pericardium is a globular berry; the 

 -. arc solitary, and angular on one 

 side. There is but one species, \i^. JE. 

 betulinum, which is a tree very much 

 branched, with wrinkled bark and alter* 

 nate leaves resembling 1 those of the m\ r- 

 tlc. 



JEOLIPILK, a hollow metalline ball, 

 in which is inserted a slender neck or pipe; 

 from whence, after the vessel has been 

 filled with water, and heated, issues a 

 blast of wind with great vehemence. 



Great care shoidd be taken, that the 

 aperture of the pipe be. not stopped when 

 the instrument is put on the fire, other- 

 wise the xolipile will burst with a vast 

 explosion, and may occasion no little mis- 

 chief. Dr. Plot gives an instance, where 

 the aolipile is actually used to blow the 

 fire ; the lord of the manor of Eflinglon 

 is bound, by his tenure, to drive a goose 

 every New-year's day three times round 

 the hall of the lord of Hilton, while Jack 

 of Hilton (a bra/en figure having the 

 structure, of an xolipilc) blows the fire. 

 In Italy, it is said, that the xlopileis com- 

 monly made use of to cure smoky chim?. 

 neys; for being- hung over the fire, the 

 blast arising from it carries up the loiter- 

 ing smoke along with it. 



An aeolipile of great antiquity, made of 

 brass, was lately dug 1 up in the sh" of the 

 Basingstoke canal, and presented to the 

 Antiquarian Society in London. It is not 

 g-lobular, with a bent tube, but in the 

 form of a grotesque human figure, and 

 the blast proceeds from the mouth. 



JEOLUS'S //>/>, or EOLIAIV harp, a mu- 

 sical instrument, so named from its pro- 

 ducing an agreeable harmony merely by 

 t'ie action of the wind, s ics. 



.2ERA, a fixedpoint of time, from which 

 any number of years is begun to be rec- / 

 koned. See CIIROMILUKT. 



V I .KOSTATIOX, in the modern appli- 

 cation of the term, signifies the art of na- 

 vigation through the air, both in its prin- 

 ciples and practice. Hence also the ma- 

 chines which arc employed for this pur- 

 pose- are called . or aerostatic 

 machines; and on account of their round 

 figure, air balloons. 



Tin fundamental principles of this art 

 ha\e been long and generally known; al- 

 though the application of them to prac- 

 tice seems to be altogether a modern dis- 

 covery. It will be sufficient, therefore, to 

 observe, in this place, that any body, 



