COP 



244 



COR 



thus an aqueduct is a con reyance for water ; 

 a deed of conveyance is an instrument or 

 writing by which lands, &c., are con- 

 veyed or made over to another person. 

 The term is also used in the sense of 

 transference, assignment, &c. 



CONVOCATION, from eon and coco, to 

 call ; an assembly of the clergy of the 

 Church of England by their representa- 

 tives, to consult on ecclesiastical affairs. 

 It is held during the session of parlia- 

 ment, and consists of an upper and lower 

 house ; but is now a mere form. 



CON VOLVULA'CEJE, a natural tribe of plants 

 of which the genus Convolvulus is the 

 type. 



CONVOL'VTJI/US, the Bindweed ; a genus 

 of plants. Pentandria Monogynia. Name 

 from convolve, to roll up. Upwards of 

 100 species are enumerated, among which 

 are the jalap, scammony, and turbith 

 plants, the Spanish potato, &c. 



CON'VOY. In navigation, a ship or ships 

 of war, appointed to escort or protect the 

 merchant ships. The word is sometimes 

 nplied to the protected ships, and some- 

 times to both the protecting and pro- 

 tecUM vessels. In the military service, it 

 signifies a detachment of troops who 

 guard supplies of provisions, ammuni- 

 tion, &c.. on their way to the army. 



COO'LER r REFRIUERA/TOR, an apparatus 

 used by brswers and distillers for cooling 

 worts. 



COOMB. 1. A dry measure of 4 bushels. 



2. A term in geology. See COMBE. 



CO-OR'DINATES, in the theory of curves, 

 denote any absciss with its correspond- 

 ing ordinate. 



COOT, a name common to all the birds 

 of Linnaeus's genus Fulica (q. v.). The 

 tree Coots form the genus Fulica, Bris- 

 son. These birds form the link between 

 the grallatorias and palmipedes. 



COPAI'BA, from copal, the American 

 name for any odoriferous gum, and iba 

 or iva, a tree, a yellow resinous juice of a 

 :-itterish biting taste, obtained fcom the 

 cojxtifera offidnalis, a tree which glows in 

 the Brazils and New Spain. 



CO'PAL. The substance called pitm 

 copal is imported from Guiana, and k the 

 produce of the Rhrn copallinum, from 

 which it exudes spontaneously. 



COPAR'CENARY, Lat. con and particept. 

 An estate is held in coparcenary, and the 

 tenants are coparceners, when it descends 

 from an ancestor to two or more persons. 



COPER'NICAN SYSTEM, a particular sys- 

 tem of the sphere proposed by Pythagoras, 

 and revived by Copernicus, in which the 

 sun is supposed to be placed in the centre, 

 and all the other bodies to revolve round 

 it in a particular manner. 



COP'PER, a well known metal named 

 from the island of Cyprus, whence it was 

 first brought. It is f -ind in nature in tin- 



metallic state, in the state of oxide, sul- 

 phuret (vitreous ore of Jirochant) , carbon- 

 ate (malachite), hydrosilicate, sulphate 

 (blue vitriol), phosphate, muriate, and 

 arseniate. There are many varieties of 

 these ores. Sp. gr. of copper 8'9, melting 

 pt. 27 "VVedgw. In tenacity it yields to 

 iron, but surpasses gold, &c. 



Cop'pERAs,aname formerly synonymous 

 with vitriol, and hence applied to blue, 

 white, and green vitriol, but especially 

 the green, a factitious sulphate of iron. 



COP'PER-BOT'TOMED, having the bottom 

 sheathed with copper : applied to ships, 

 &c. 



COP'PER-FAS'TENED, fastened with cop- 

 per-bolts. 



COP'PER-PLATE PRINT'INQ, the process of 

 taking impressions from copper-plates, 

 which is done by means of a rolling press. 



COP'ROLITE, from xo-x^os, excrement, 

 and */&>?, stone ; the petrified fa?cal mat- 

 ter of carnivorous reptiles, found in all 

 strata containing the remains of these 

 animals. 



COP'TJLA (Lat.), a shackle. 1. In logic, 

 the verb which connects two terms of a 

 proposition, the subject and predicate, a 

 "wrtue is indispensable to happiness:" 



here is is the copula. 2. In anatomy, a 



ligament. 



COP'Y, in printing, is the subject-matter 

 to be printed. 



COP'YHOLD, in tow, is a species of custom- 

 ary estate, said to be held by copy of court 

 roll; that is, by copy of the rolls of a 

 manor made by the steward of a lord's 

 court. 



COP'YRIGHT, the right which an author 

 has in his own literary compositions. 



CORA'CIAS, from xo^a^, a crow ; a genus 

 of birds the Rollus. They belong to the 

 Eastern Continent, and resemble the Jays 

 in their habits, but their plumage is vivid. 

 Order Passerines, family ConiroUres. 



COR'ACLE, a boat used by fishermen in 

 "Wales, made by covering a wicker frame 

 with leather or oil-cloth. 



COR'ACO-BRA'CHIAL, in anatomy, is ap- 

 plied to the muscle by which, the arm i* 

 raised upwards and forwards, from its 

 origin and insertion. 



COR'ACOID, from ??, a crow, and 

 tito;, like ; shaped like the beak of a crow. 

 -Applied to the upper anterior process of 

 i e scapula from its form. 



COR'AL (jsajaWuov), a general name for 

 those stony envelopes formed by coralliferi, 

 in certain seas, as the Red Sea, Persian 

 Gulf, Coast of Sumatra, &c. It is a cal- 

 careous substance, has a shrub-like ap- 

 pearance, and is of various colours, as 

 red, white, and black. Its value depends 

 on its size, solidity, &c. : some is worth 10J. 

 an ounce, while other descriptions do not 

 bring Is. per Ib. The islands of the South 



