142 
Mr. Weaver on the 
garnet ; and the same fact may be observed in the old public road, 
which crosses the hill on the southern side. 
About thirty yards to the east of the boundary fence, we perceive 
naked rocks protruding to the surface, which prove to be a modifi- 
cation of granite, very different in structure and aspect from that of 
the Scalp, greyish white splintery quartz being the predominating 
ingredient, with which are interwoven flakes of mica, and in the 
quartz we observe, incidentally, a thin layer of lamellar felspar, and 
even crystals and disseminated portions of this mineral. The whole 
looks like an approximation to quartz rock, and in fact, the conical 
part of Shank-hill, which immediately adjoins on the east, consists 
wholly of that rock, and probably rests immediately on this granite. 
§ 23. From the Scalp, the mica slate preserves a nearly rectilinear 
course to Maulin-hill and Djouce mountain, passing in its way 
Glenculler, through Annacriven to the west of Powerscourt, thence 
under the eastern side of Glasskenny, crossing Glencree river, and 
forming the eastern side of Balreagh glen. This glen, or rather 
amphitheatre, presents on the western side, bold precipices of granite, 
naked and abrupt, and the same rock forms the floor and about one- 
third part of the acclivity on the eastern side, upon which a pre- 
cipitous mass of mica slate is seen reposing in a nearly horizontal 
position. This is the foot of Maulin-hill, which may be considered 
as the eastern horn of the amphitheatre. 
Maulin-hill immediately faces the Great Sugar Loaf, and the view 
from its summit is beautiful ; as indeed is the prospect from every 
mountain top of this romantic region; (see Plate 8. No. 8 and 9.) 
From this point we clearly perceive that the mica slate ranges, in the 
line of its apposition to the granite, almost as straight as an arrow to 
Rochetown-hill. It dips on the summit, towards the south-east 25°, 
