68 
EDDY: LEAD VEINS. 
physical nature when prepared for the furnace made it most refrac- 
tory in the smelting, very much more so than is usual in ores 
raised from mines in the same class of rocks. 
The south vein — contraiy to the characteristics of the main — 
had very little " throw," and regular cheeks or sides. It showed 
a north-east "underlie" of about 6 and in the bearing part of 
the lode was of a width varying from a few inches to a foot. Its 
bearing is about 40"^ W. of N. Mag., bearing towards the main vein 
going westwards. 
The junction, however, has not been seen in this direction, 
probably on account of the intervention of the " fault " before 
alluded to. This ''fault" has not been recognised in the mine, for it is 
difficult and often impossible to see in the size of a level anything 
further than what appears a backing " in the rock, whenever the 
fault " is a mere joint. 
The ore in the south v^ein was of a different nature to that 
from the main lode, being generally found loose in the vein, with 
little matrix, and that generally of friable carbonate of lime, with 
loose, dry, earthy mineral. In quality this ore was superior to 
that from the main vein, but unfortunately it fell far short in 
quantity. 
The ore bearing zone was limited to a distance of about 1 8 
fathoms, extending from the deep to a little higher than the 
upper adit, while in length the productive ground was still less 
than in the main rein. 
In driving the middle level near Mason's shaft, the lowest 
part of the earliest works were met with, and in Brigg's level, east of 
Garforth's ; a long length of old workings and a short crosscut were 
oi>ened into. Here our predecessor had cut his ground with picks 
only, and every shift or day's-work could be accurately told by obser- 
vation of tlie side of the level. Only in one place was a bore hole 
to be seen, and this was probably of a later date. The vein was 
filled with solid suljihate of barytes, but so hard that the modern 
