...these rocks, which are only partially covered by a sprinkling of ashes, puzzolana, pulverized shte, and other fragmentary matter. The bottom of this cavity...augite, appears to have been emitted from clefts in the greywacke, on three or four neighbouring [ioints, upon the very brink of the steep slope, or rather...

...':• ; c. The most southerly point- of this^distfict, on which volcanic products have been met witbj, is the vicinity of the baths of Bertrich, a village...the Moselle. • ••; . Here a lava, which has corigealed into an exceedingly hard, tough, and compact basalt, full of crystals of olivin and augite,...

...sandstone, forming the north base of Moseberg ; and the steep walls which encircle it, exhibit, on many points, the abrupt sections of these rocks, which...augite, appears to have been emitted from clefts in the greywacke, on three or four neighbouring points, upon the very brink of the steep slope, or rather...

...vicinity of the baths of Bertrich, a village seated at the bottom of the deep and narrow mountain-gorge of the river Isbach, which flows at the distance of...hard, tough, and compact basalt, full of crystals of olivine and augite, appears to have been emitted from clefts in the greywacke, on three or four neighbouring...

...vicinity of the baths of Bertrich, a village seated at the bottom of the deep and narrow mountain-gorge of the river Isbach, which flows at the distance of...hard, tough, and compact basalt, full of crystals of olivine and augite, appears to have been emitted from clefts in the greywacke, on three or four neighbouring...