OF CORNWALL. i 75 
<c Thefe calculations have been fo faithfully extracted from the 
account-books belonging to thefe mines, that the whole may be 
attefted by affidavits, if occafion ffiould require 1 .” 
Hence it appears that the confumption of coals in the fire-engine 
is very great, the duty of coals confumed by thefe mines at five 
fhillings per chaldron, amounting, in one month, to one hundred 
and thirty-nine pounds eighteen {hillings and three -pence. The 
government prudently remits the duty on coals fo expended, by 
which bounty, befides repaying itfelf for the duties remitted, it 
gains clear by thefe works, when in full working, five hundred and 
twenty-three pounds thirteen {hillings and two-pence in one month ; 
whereas, without this bounty, fire-engines would not have been 
eredfed, nor could thefe mines, nor many others in the county, ever 
have b ccn worked, and conlequently the lofs to the government 
would be as their prefent gain. There are feveral other very confi- 
derable mines now worked by the fire-engine in Cornwall b , by all 
which the government gains in proportion to the materials ufed, and 
the metal railed. 
The tin-ore being raifed out of the mine, is then divided into as sect.xv. 
many {hares, as there are Lords and adventurers. The Lord ufually Dividing tin- 
hath a fixth-part clear of coft, but in confideration of draining the ° re ’ 
mine, and otherwife encouraging the adventure, is oftentimes content 
with an eighth, and fometimes a tenth. If the lands are bounded c , 
then the bounder has the right of Jetting , or giving authority to 
fearch and work, and has the fixth clear, or as he agrees, and the 
Lord of the foil has only a fifteenth. The adventurers have in 
proportion to the part of the work which they carry on. Thefe 
{hares ( which they term doles ) are parcelled out, being firft mea- 
fured by barrows, and then carried into fo many different heaps ; 
every mine having the privilege ( to the great regret oftentimes of 
the hufbandman) of diftributing and dividing the ore, on any the 
moil adjacent parts of the field. As the barrows are carried off to 
their feveral divifions, one perlon, who is the reckoner, keeps an 
account by notching a flick at every barrow : if there be any 
fractions in the numbers to be divided, they then divide the whole 
into five or fix or more parcels, according to the proportion of the 
Lord’s and bounder’s fhares, and leaving thofe fhares untouched, pro- 
ceed to throw the remainder of the parcels all together into one heap, 
and then divide it eafily among the adventurers; and it is furprizing 
* Letter from William Lemon, Efq; May 8, 
17561 to whofe accuracy and univerfal knowledge 
in the art of mining, I am indebted for thefe and 
other obfervations. 
b Huel-rith in Godolphin-ball, Herland, BuJ- 
lengarden, Dolcooth, the Pool, Bofproual, Huel- 
ros, and fome others. 
c See before, page 167. 
to 
