66 
EDDY: LEAD VEINS. 
adit, middle level, and deep adit in tlie south vein which returned 
some ore under very different conditions to those observed in the 
main vein ; and also an adit level driven and a shaft sunk into the 
Gib Hill, on a vein which never produced any ore ; through this 
level and shaft — at a later date — the smoke from the smelting 
mill was conveyed for the purpose of facilitating a further con- 
densation of the fumes. 
The main vein has a general direction of 3*2° W. of N. Mag. 
varying from 45° W. of N. in the ore-bearing part of the lode 
to 27° W. of N. in the poor ends of the mine. The " underlie " 
or "hade" south-west in the latter is 20° from the vertical, and 
in the former about 10°. In depth, this vein should receive the south 
vein, which with a hade of 6^ from the vertical to the north-east 
might have been expected to be a valuable feeder of the old vein, 
but both failing in depth this junction downwards has not been 
experienced. 
Between the deep and the upper adits, the main vein varied in 
width from a mere joint to 5 or 6 feet ; and in the bearing-length 
above the latter it increased in some parts to 20 feet wide or more, 
yielding ore in one place close to the surface clay. 
Below the adit the good part of the vein produced lead ore to 
a depth of 8 fathoms, and a little to the 15 fathoms level under the 
adit, but practically the vein failed at the depth of 15 fathoms, or 
a total depth from the surface at the engine shaft of 50 fathoms. 
As will be seen from the plan the main vein was regularly 
productive for a comparatively short length of ground, the whole 
of the lode driven on east and west proving unremunerativo, 
though not entirely barren. 
In the pi-oductive channel of ground bounded by the main and 
south veins were several strings or smaller vein -branches, which 
leaving the old vein on its south side, robbed it, but not having 
strength to carry on to the south vein failed to enrich that lode 
east of the crosscut south of G-arforth's shaft.* 
* iS. B. — On account of small scale of plan these strings and several other 
works are omitted. 
