206 
Mr. Weaver on the 
on either side having been washed away by the mountain torrent. 
This vein ranges 10° south of east and north of west, dipping 
70° toward the south, and forming in the line of its direction an 
angle of 55° with that of the lead vein: but the relations between 
these two veins, at the point of contact, have not been ascertained 
by operations underground. In the ravine we perceive consider- 
able disturbance, and the loose mass of vein materials, quartz, heavy- 
spar, galena, blende, pyrites, and soil, occupy several fathoms in 
width. I apprehend, however, that the lead vein traverses the vein 
in the ravine, for the former has been cut in the due line of its 
range to the north-west, about 130 fathoms beyond the latter, and 
in attempting to trace this vein up the hill on the other side of the 
lead vein, it appears to me to be thrown two or three fathoms to 
the northward: a dislocation, which may tend to explain the great 
breadth of vein stuff at the point of intersection. 
§ 99. By ascending the ravine, situate farther up the glen, in 
which the fundamental granite first decidedly appears, we find the 
mica slate in contact with it ; (§. 33.) and between the two rocks there 
is interposed a bed of quartz, from one and a half to two feet thick, 
following in its range and dip the line of junction. This bed of 
quartz bears galena, and has been worked five or six fathoms in 
length, and twice as much in depth, but the operations were not 
attended with advantage. It is remarkable, as being the only me- 
talliferous bed that has occurred in the tract. 
§ 100. In the waterfall at the head of Glenmalur, a vein of 
quartz may be observed, about four feet wide, containing dissemi- 
nated galena and iron pyrites. It appears in three places, ranging 
in the granite nearly north-west and south-east. 
§ 101. On the south side of Glenmalur, indications of metals 
also occur. On Mr. Parnell’s ground, is a vein of quartz, from one 
