20 6 NATURAL HISTORY 
Here may we date the advance of the price of copper and improvement 
of copper-mines ; for though this gentleman was frequently purchafer 
of the whole product, as well as dire&or of all the mining part, (as 
indeed he well deferved to be) and by this means could the better, and 
not unjuftly, conceal his profits ; yet the copper could not be forted, 
drefled, and weighed, and fometimes feparately fold, without the 
real value tranfpiring in fome meafure. By degrees the Cornifh 
dreffers of copper-ore grew informed nearly of the value and proper 
management of the ore, and at prefent a great many allay it. 
The copper being thus fold to the agents of the copper-compa- 
nies in Wales and Briftol, is fhipped off for thofe places to be melted 
and refined. 
sect. xm. The firft and greateft copper-mines which have turned out con- 
their^eve^ fiderable profits within thefe forty years, are the following : 
nues yet im- Chace-water, in the parifb of Kenwyn (a) ; North Downs, in 
proveabie. . Huel-ros, in St. Agnes (c) ; Rofkaer and Huel-kitty, 
in Camborn (d ) ; Huel-fortune, in Ludgvan (<?) ; the Pool, in Illo- 
gan (f) ; Dalcooth, Bullen-garden, Entral, Longclofe, in Cam- 
born (g) ; Metal works, in Gwenap (h ) ; Trejeuvyan, in Gwenap (i) ; 
Binner Downs and Clowance Downs, in Crowan [k] ; Huel-cock 
and Rofmoran, in St. Juft (/); and Herland mine, in Gwinear * : 
But the greateft and moft fudden gain produced by any copper-work 
which I have yet heard off, and as far as the memory of man reaches, 
was that of Huel- virgin, in the parifh of Gwenap, in July and Au- 
guft 1757. In the firft fortnight’s working, it threw up copper 
fold for five thoufand feven hundred pounds; in the next three 
weeks and two days, as much copper as fold for nine thoufand fix 
hundred pounds : to raife the firft-mentioned quantity, it coft the 
adventurers no more than one hundred pounds ; to raife the fecond, 
a trifle more in proportion to the quantity. 
All thefe either are or have been of late years very profitable 
works ; and befides the many thoufand pounds annually returned to 
the Lords, (their dues being generally one fifth part of the whole 
produce clear of all expence, never lefs than one eighth clear) great 
fortunes have been railed to adventurers, and there are feveral other 
gainful though lefs confiderable mines now in working, fo that the 
annual income to the county from copper equals very nearly at 
Lords of the Soil are 
(«) Lord Vifcount Falmouth. Efq; Mr. Abel Angove. 
(b) Sir John St. Aubyn, Baronet, and John (g) Francis Baffet, Efq; 
Nance, Efq; (J) Francis Beauchamp, Efq; 
( c ) Thomas Heyes, Efq; (/') Hugh Rogers, Efq; 
\d) Samuel Percival, Efq; late Sir William (b) Sir f . St. Aubyn, Baronet. 
Pendarves, Knight. (/) J. Uftick, Efq; 
(<?) Earl of Godolphin. * James Buller, Efq; the late Robert Hoblyn, 
(f) Francis Ballet, Efq; H. Mackworth Praed Efq; Mr. Abel Angove. 
