NATURAL HISTORY. 
the obvious probability is, that the other beds at a 
greater depth, run; but whether this is the case, or 
whether, if they do so, the central bed is proportion- 
ally increased, must of course remain uncertain, 
until a level is driven, through the side of 
the hill from the northern ravine, and which 
would cut the lode at about 150 feet perpendicularly 
below the surface. Permanent springs rise at the 
depth of a few feet, the water from which is carried 
off by a syphon bert over the northern slope of the 
hill. A level driven from the back of the lode, at 
the depth of about 20 feet from the surface, through 
schist, in a south-west direction, intersected, about 
30 feet from its commencement, another small bed 
of ore, about 3! feet in width, in which a large pro. 
portion of iron-pyrites is disseminated, the dip being 
the same as that of the principal lode, with which 
however, it does not seem to be connected; the 
latter being included in a well-defined manner, in 
alternating beds as previously stated, whose width 
is altogether about 28 feet. The length, of course, 
is not capable of being so accurately defined : 
from the part where the road crosses the vein on 
the western side, the traces are observable on to 
the granite, a distance of 230 yards, which they 
do not enter, but are conformable along its edge 
for some distance in a northerly direction ; and on 
the eastern or lower side, it has been traced for the 
distance of 250 yards, down to a compact stratum 
of Hornblende, blended with garnet and actinolite, 
against which the traces appear to have been hove 
