Vol. 58.] THE RED SANDSTONE-ROCKS OF PEEL, 639 
south, and throws down the Red Sandstone Series to the west 
into the black-and-grey soft phyllites of the Ordovician massif. 
(See fig. 4, p. 638, & Pl. XX XTIT.) 
VII. Tur Rance oF tHE Rocks INLAND. 
These rocks are bounded on the north-east by a fault clearly 
defined in the cliff and foreshore; and on the south-west at Creg 
Malin, by a reef which (from its being in a right line) probably. is 
a fault-line. Still farther west the Drift-sands, clays, and gravels 
occupy the whole of the foreshore, and as far as the Ordovician 
slates on the western side of Peel Harbour, and St. Patrick’s Isle. 
These Drift-deposits have been proved to the depth of 20 feet 
below the bottom of the harbour, and are of unknown depth. 
They rise to more than 100 feet above Ordnance-datum inland, 
filling up the pre-Glacial valley of Peel, and obscuring the 
exact boundary of the Red Sandstones below. The latter have, 
however, been struck in a boring south-east of Ballagyr, and 
occur in the fields south of that place, and east of Ballaquane 
House. They therefore extend as far as these points, and are so 
represented in the map (Pl. XXXITI). 
There are also two small outliers of red sandstone and con- 
glomerate near Glenfaba Bridge, which rest on the black rotten 
slate, their actual boundaries being concealed by Drift. That to 
the north of the bridge is entirely covered with Drift, and is only 
known from a shaft, 20 feet deep, sunk about the year 1840,! through 
Drift and 2 feet of red sandstone into the blue rotten slate. The 
second ranges from a fault, close to the south-western abutment of 
the bridge, over the lower portion of Mr. Corrin’s garden, as far as 
Raggatt, and is proved to be surrounded by black rotten slate, in 
shafts and borings on the south, west,” and east,” and by exposures 
of slate to the north. On the south-east, it is concealed by alluvial 
sands and gravels. 
Tf the map (Pl. XXXIIT) be compared with my preliminary 
1 T am indebted to the late Mr. Robert Corrin and to Mr. Morrison for 
particulars of this and the following borings and sinkings in search of coal in 
this area. 
2 Two levels driven into slate by the Foxdale Mining Oo., one under Raggati 
House, the other to the north, about the year 1830. 
3 A borehole at a distance of 500 feet north-east from the bridge, made 
about 1864 by Messrs. Robert Corrin, Morrison, & Keown, yielded the 
following section :— ; 
J Thickness in feet. 
PS )0 10 NP See iBrs seepeeter ance coup BR eeeetine ects 2 \ 
Drift-clay, sand, and gravel ... 88! 
Rotten shale 00k. ey Ze 
Giréy, sandstones ..sca-ceuee ae ee 2 r ¥ 
‘ Blue fox-clay’ | 39 | 
Rotten shale f eee were reese Vv ) 
The slate was also struck, in a shaft 20 feet deep, close to the south of Glen- 
faba millwheel, by the same explorers about the same time. 
