LAM 



of Orleans, containing in its interior, and in the pariib of 

 AfTumption, 4467 inhabitants. 



LAGASCA, in Botany, after Don Mariano Lagafca, 

 tlie worthy pupil, and now fucceffbr, of profefTor Cavanilles 

 at Madrid. — Cavan. in Ann. de Cienc. Nat. v. 6. 331. 

 Sims in Curt. Mag. 1804. (Lagafcea; Willd. Enum. 

 941.) — Clafs and order, Syngenefta Polygam'ia-fegregata. 

 Nat. Ord. Compofits. 



EfT. Ch. Involucrum a fimple row of leaves. Partial 

 calyx five-toothed, fingle-flowered. Florets tubular, all 

 perfeft. Receptacle cellular, very hairy. Seed-down 

 none. 



I. L. mollis. Soft -leaved Lagafca. Curt. Mag. t. 1804. 

 — Native of Cuba. A tender annual, of little beauty. 

 Herb downy, very foft. Leaves ftalked, ovate, toothed ; 

 the lower ones oppofite. Flowers terminal, white. 

 LAHORE, 1. 10, for Schauguive r. Shah Jehan. 

 LAKE, a town of Champaign county, in Ohio, con- 

 taining 480 inhabitants. 



LAKSHML col. 3, 1. 4, for deities r. deity's wives. 

 LALESTON, Higher and Loiueriin Geography, form a 

 parifh of Newcaftle hundred in Glamorganftiire. The 

 Higher in 181 1 contained 34 houfes, and 157 perfons ; 81 

 being males, and 76 females : and the Lower contained 62 

 houfes, and 271 perfons ; III being males, and 160 females. 

 LAMBETH, 1. 25, r. 181 1 — 7201 ; 1. 24, r. 41,644, 

 and 4491 ; 1. 27, r. 338. 



LAMBOURN, 1. 13 and 14, r. In the year 181 1, the 

 population of the parifh, with its dependent hamlets, -viz. 

 Blagrave and Halley, Eaftbury and Bockhampton and 

 Upper Lambourn, was 2674 perfons, and the number of 

 houfes 527. 



LAMP, Aphlogistic. Sir Humphrey Davy, during 

 his refearches on flame with the view to the conftruftion of 

 his fafety-lamp for coal-mines (fee Wire-Gauze), obferved. 



''g 



to 



LAN 



it for his experiments by burning the aphlogiftic lamp 

 under an alembic head, and colleaing the produfts ; but we 

 underftand it may- be formed much more readily by 

 palling the vapour of ether through a tube containing pla- 

 tnium wire. The lampic acid, when as pure as poiTible, is a 

 colourlefs fluid, of an intenfely four tafte and pungent odour. 

 Its vapour when heated is extremely irritating and difagree- 

 able, and produces an oppreflion on the cheit, fomething hke 

 that produced by chlorine. It reddens vegetable blues, 

 and decompofes all the earthy and alkahne carbonates. Its 

 fp. gr. when reftified as highly as pofllble, accordin 

 Mr. Daniell, is 1015. 



The Lampates of Potajh and Soda are deliquefcent falts, and 

 do no not readily cryftaUize. The lampate of ammonia is 

 volatile, and eafily decompofed. The lampate of barylei 

 readily cryfl;anizes in colourlefs tranfparent needles. The 

 lampates of lime and magnefta are deliquefcent. 



The lampic acid has the property, according to Mr. 

 Daniell, of reducing many of the metallic oxyds ; this is 

 particularly the cafe with the oxyds of gold and mercury. 

 When warm nitrate of mercury, according to Mr. Daniell, 

 is mixed with lampic acid, a metallic fhower takes place, 

 and brilliant globules of mercury foon accumulate at the 

 bottom of the veffel. 



Mr. Daniell eftimates, from his experiments, the weight of 

 the atom of lampic acid at about 64, and confiders it as 

 compofed of l atom hydrogen -f- i atom carbon -|- 1 atom 

 water. How far thefe determinations are to be depended 

 upon we cannot fay, though we think it probable that they 

 are incorreft. 



LANARK, X.ult.r. 1811— 5677— 658. 

 LANARKSHIRE, 1. 13, ,-. according to the parlia- 

 mentary returns in 18 11, the population of the county con- 

 fift:s of 191,752 perfons, occupying 32,040 houfes; the 

 males are 88,688, and the females 103,064 : the families 



that a fine platinum wire heated red hot and held in the vapour employed in trade, manufaftures, and handicraft, are 27,672, 



of ether would continue ignited. Soon after this curious 



faft was made known, Mr. Ellis of Bath thought of extend- 

 ing the principle, and found that a coil of fine platina wire, 



(luck into the wick of a common fpirit-lamp (being pre- 



vioufly heated), might be kept red hot for any length of 



time. The lamp fo conftrufted received the appellations of 

 aphlogiflic lamp, lamp without Jlame, &c. 



The platinum wire for this experiment fliould not exceed 



-r^th part of an inch in diameter. About twelve coils of this 



(the coil being about ,^gths of an inch in diameter, and as clofe 

 together as pofllble without touching) are to be placed upon 

 the wick of a common fpirit-lamp, in fuch a manner that half 

 be on the wick and half above it ; the lamp is then to be 

 lighted, and when the wire has become red hot the flame is 

 to be blown out ; the wire will then remain red hot for any 

 length of time required, and in a dark room, if properly 

 cohllrufted, will emit a confiderable light. Inllead of alco- 

 hol, ether may be employed, or a fimilar effefl may be 

 produced by flicking the ignited wire into a piece of 

 camphor. 



LAMP, Safety, for coal mines. See Wire-Gauze. 

 LAMPETER, 1. 2, r. 2501. 



LAMPIC Acid, in Chemijlry. The name recently given 

 by Mr. Daniell to an acid generated by the combuftion of 

 alcohol, &c. by the aphlogiftic lamp. 



Sir Humphrey Davy obferved, during the combufl;ion of 

 ether in the manner above defcribed, the formation of a 

 peculiar acid pungent vapoiir, which he confidered as a new 

 produft. Mr. Faraday foon afterwards defcribed fome of 

 the properties of this acid, and more recently Mr. Daniell 

 has given us a more full defcripUon. Mr. Daniell prepared 

 Vol. XXXIX. 



and thofe employed in agriculture 5387. 



LANCASHIRE, 1. 21, r. 1811 — 144,283—828,309; 

 1. 22, r. 1 14,522 ; 1. 23, r. 23,305. The number of males 

 was 394,104, and that of the females was 434,205. 



Lancashire. This county contains feveral villages and 

 parilhes, which, by the prevalence of its manufactures, are 

 become populous, but which our Hmits will not allow us to 

 mention. 



Afhton-undcr-Lime (omitted in its proper place) deferves 

 a particular notice as a parifli in the hundred of Salford, 

 which in 1 81 1 contained 3042 houfes, and 19,052 perfons, 

 •u/z. 9146 males, and 9906 females; 213 families being 

 employed in agriculture, and 2737 in trade, manufadures, 

 or handicraft. 



AJhton-in-MankerJield is alfo a townfliip in the hundred of 

 Weil Darby and parifli of Winwick, which contains 864 

 houfes, and 4747 perfons ; w'z. 2342 males, and 2405 

 females: 163 families being employed in agriculture, and 

 726 in trade, manufaftures, &c. 



LANCASTER, col. 4, 1. 26 from bottom, r. 1811 ; 

 1. 25, r. 1694 and 9247. 



Lancaster, in America, 1. 5, ;•. 3927 — 44. Col. 2, 

 1. 5, r. 5592 inhabitants, of whom 3 1 1 2 were flavesin 1810; 

 1. 7, r. 6318 ; 1. 8, r. 1646 ; 1. 18, add — and by the cenfus 

 of 1 8 ID, 5405 inhabitants, including 700 flaves ; 1. 31, add— 

 Alfo, a townfliip of the fame county, containing 592 inha- 

 bitants : — 1. 43, r. 1694 ; 1. 44, for Grafton r. Coos ; 1. 47, 

 r. 1810, and 717. 



LANDAFF, 1. 2, r. 650. 



LANDGROVE, a town of Bennington county, ia 

 Vermont, having 299 inhabitants. 



3X LANDSCAPE, 



