Page:Transactions of the Geological Society, 1st series, vol. 3.djvu/448

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Organic remains, abundant in Barbadoes 237
──────── of the Chalk in Cambridgeshire 250
──────── of the Limestone of Somersetshire 369
Pearlstone porphyry, occurs in the Basalt district of the North of Ireland 190
Pecherz, found in Cornwall 113
Phillips, Mr. W. On the Oxyd of Uranium the production of Cornwall 112
Pinite, found in porphyry near Glen Tilt 308
Pitchstone, of a singular character found in Sky 94
──── porphyry, occurs in the basalt district of the North of Ireland 190
Porphyry, in the North of Ireland, described 143
──── occurs in the basaltic area of the North of Ireland 189
──── singular variety of, found in Glen Fernat 310
Prehnite, occurs in trap veins in Sky 80
Quantock hills, in Somersetshire, described 339
Quartz rock, one of the oldest rocks in Sky 28
────── and Mica slate generally found alternating 28
────── appears to have been stratified in Sky 30
────── numerous Trap veins in, in Sky 30
────── in contact with and conformable to beds of red sandstone, at Ord, in Sky 30
────── Limestone with shells between beds of 31
────── Limestone and red sandstone alternating with 31
────── contact of other stratified rocks with, at Loch Eishort, in Sky 31
────── dark blue stratified with beds of clay slate 32
────── superimposed on the granite in Glen Tilt 303
────── passing into granite in Glen Tilt 293
Red hills, in Sky, described 14-68
Red marle, in the North of Ireland, described 131
Red sandstone, its position, in Sky 34