COR 



ordinary maps, there is no trace of tlie higlieft or central 

 chain; and Mr. Arrowfmith's map of America, in 1802, 

 makes the valley of Magdalena occupy the whole interval 

 between the eaftem and weftern chains. The mod difficult 

 pafTage of the Andes is that by the mountain Quindiu. 

 It lies through a thick uninhabited foreft, which cannot he 

 traverfed, in the fineft feafon, in lefs than ten or twelve 

 days. The fummit of the pafs is at the prodigious height 

 of 11,499 fset above the level of the fea, and the paffage 

 from ten to fixteen inches in breadth. Humboldt's Re- 

 fearches, &c. by H. M.Williams, 18 14. 

 - CORDYLINE, in Botany, an old name of Van Royen's, 

 from xof^uXn, a club or fiqff, fuitable enough to the Draciene 

 and Yucca to which it was originally applied, and which we 



prefume are included in the genus which now bears it. 



Commerf. in Juff. 41. Brown Prodr. Nov. Holl. v. i. 280. 

 — Clafs and order, Hexandrta Monogynia. Nat. Ord. jlf- 

 parag't, Juff. AJphodelex, Br. 



Eff. Ch. Corolla bell-fhaped, in fix equal fegments, 

 deciduous. Filaments inferted into the throat, awl-(haped, 

 fmooth. Anthers verfatile, cloven at the bafe. Stigma 

 three-cleft. Berry globular, of three cells, with feveral 

 feeds, whofe fear is bordered. Br. 



The ftem is {hrubby. Leaves lanceolate, finely ribbed, 

 elongated. Panicle terminal, of numerous, many-flowered, 

 alternate fpikes, with two unequal" ira<!?eaj under each 

 foiver. 



I. C. caunifoUa. Br. n. I. — Leaves ftalked, pointed. 

 Clufters divided. Outer brafteas acute, twice as large as 

 the inner, which hardly equal the partial ftalks. — Found by 

 Mr. Brown, in the tropical part of New HoDand. 



See Dracaena, of which our firft and fecond fpecies 

 belong to this genus. 



CORFE-CASTLE, 1. 29, r. after return— of iSii 

 was 161, and of inhabitants 744. 



CORINTH, a townihip of America, 1. 2, r. 1876, 

 CORINTHIAN Order, 1. 8, for convex r. concave. 

 CORN, col. 3, 1. 18 from the bottom, dele 1. 18 to 1. 14. 



Vol. X. 



CORNEA, Opacities of. Opacity of the cornea is one 

 of the worll confequences of obftinate chronic ophthahny. 

 The flight, recent, and fuperficial form of the difeafe is 

 iifually known under the name of nebula ; and it is pre- 

 ceded by and attended with chronic ophthalmy. The 

 ins and pupil are difcernible through a fort of cloudinefs, 

 and the patient is not entirely deprived of the power of 

 s^ifion. The veins of the conjunftiva are greatly relaxed, 

 turgid, irregular, and knotty, which change firft affedls 

 their trunks, and then gradually extends to their ramifi- 

 cations near the union of the cornea with the fclerotica, 

 and ultimately to their moft minute branches returning 

 from the delicate layer of the conjunftiva, fpread over the 

 front of the cornea. When this happens, a milky albumi- 

 nous fecretion begins to be fuperficially effufed in the 

 interfpaces between the red ftreaks, and the fpecks thus 

 produced may cover only a part or the whole of the 

 cornea. 



The opacity of the cornea fometimes occurring in 

 violent ophthalmies is effentially different from the nebula, 

 and arifes from a deep extravafation of coagulating lymph 

 in the cellular texture of the cornea, or from an abfcefs 

 between its layers. In the treatment of the nebula, the 

 curative indications are to reftore the varicofe veffels to 

 their natural diameters ; and if that be imprafticable, to 



Vol. XXXIX. 



COR 



cut off all communication between the trunks of the mod: 

 promment vems of the conjunftiva and thof. on ,1 

 cornea The firft objeft is jlerfonned by ufit °jl£" 

 ophthalmic ointment, or the ung. hydrarir. nitrlti , " 

 ther w.th aftringent coUyna. The fecond dfder'tum^!: 

 fulfilled by the excifion of the fafciculus of .^^Z^: 

 .Ji.ft_at the bafe of the opacity, with a pair of diffeftb^ 

 fcfers and forceps. With refpeft to the'deeper andtor! 

 obftinate opacities, which are frequently called aliu.o and 

 /.««m^, they are confequences of fevere acute ophthalm'v 

 though fometimes the effefts of an ulcer or wound of T^e 

 cornea, when they are commonly known only by the lattm- 

 appellation. •' ^ ""^ «tier 



The recent albugo may fometimes be difpcrfed bv the 

 fame treatment, which is applicable to violent ophthaJmv • 

 and when the mflammation has been fubdued, the unV' 

 hydrarg. nitrat. is the beft local remedy for promoting 

 the abforption of the cxtravafated opaque Ivmph 'The 

 eye may alfo be frequently wafhed with a col'lyrium, com- 

 peted of two fcruples of the muriate of ammonia, and four 

 grains of verdigreafe, in eight ounces of hme-water. The 

 treatment muft be continued three or four months before 

 the cafe is to be abandoned as hopelefs. With refpeft to 

 theleucoma ariCng from a cicatrix, Scarpa fcts it down 

 as abiolutely incurable. 



CORNISH, 1.5, r. 1810, and 1606. Add— Alfo a 

 town of York county, in the diftrift of Maine, havb-r 

 974 inhabitants. *" 



CORNVILLE, a town of America, in the diftrift of 

 Maine, and county of Somerfet, having 504 iuhabitants 



CORNWALL, col. 8, I. 31, r. 181 1 ; 1. 32, r. 37,971. 

 and 216,667, Ji yi ■> 



CoRNvy.VLL, in America, 1. 3, r. 1279 ; '• 8, add— con- 

 taining 1602 inhabitants. 



CORO, 1. 7, after perfons, add— The little commerce 

 that is carried on is in mules, goats, hides, ftiecp-lkins, 

 cheefe, &c. obtained from the interior of the country, and 

 more particularly from Carora. At 'he clofe, r. N. lat. 

 10° 8' from Paris. 



CORSHAM, 1. 17, add— By the return of i8n, the 

 number of houfes was 478, and that of inhabiLin's 23QC 



CORTLANDTS, a county of New York, having 

 8809 inhabitants. 



CORUNDUM. See Mineralogy, AdJenda, and 

 Adamantine Spar, 



CORUNNA. Add— See Compostella. 



CORVUS, col. 2, 1. 20, add— The African or CapL- 

 raven, defcribed by Le Vaillaiit, is, according to Dr. Sliaw, 

 the only variety worthy of notice. 



CORWEN, \.ult. r. 51 Geo. III. 288 houfes, and 

 141 7 inhabitants. 



CORYSANTHES, in Botany, from xofu,-, a helmet, and 



a-Aar, ajiower Brown Prodr. Nov. Holl. v. i. 328. — Clafs 



and order, Gynandria Monandria. Nat. Ord. Orchidtt. 



Eff. Ch. Calyx ringent ; upper hp vaulted, very large ; 

 lower in two linear fegments, combined with the linear 

 petals. Lip dilated, concave. Anther terminal, of one 

 cell, and two connefted valves, permanent. Maffes of 

 pollen four. Curious little fmooth plants, each with a 

 fingle bulb, one roundidi radical leaf, and a large, deep 

 red, folitary flower. Nearly rtl::ted to Lyperanthus 

 nigricans ; fee that article. 



1. C. fmbriata. Fringed Helmet -orchis. Br. Terr. 



Auftr. 78. t. 10. — Lip without a fpur, hooded, fringed. — 



In fliady places, under rocks, at Port Jackfon. Br. Hardly 



two inches high, its beautiful purple vai legated flower 



3 K fubtended 



