Transactions of the Geological Society

Aldstone moor Allenheads alluvial alluvium angle appear barytes basalt beds Black Metal Black stone Blue Metal stone breccia calcareous cavities chalcedony chalk chlorite colliery colour containing described ditto Dufton dyke east fathoms feet felspar flints formation fragments Geological Society Glen Gloy Glen Roy Glen Turit gneiss goniometer granite Grey Metal stone Grey post Haüy Hazle hill hornblende inches killas laminæ lime line of Glen Loch Loch Eil Loch Laggan Main Coal marl mass Melmerby Memb mica miles mineral nodules observed occur pebbles planes plastic clay Plate porphyry post girdles primitive crystal quarry quartz quartz rock red sandstone remarkable river sand schist seam seen shale shells side siliceous sill slate spar Spean specimens Spey stone COAL strata stratum Strong grey Strong white post strontian substance sulphate surface terraces thick Thil trap Tyne upper valley veins Whin girdles