Old Red-sandstone
This group of sandstone lies below the carboniferous strata, and was called "old" to distinguish it from a series of similar strata which occur above the coal-measures. See NEW RED-SANDSTONE.
Twelve hundred entries from the golden age of cast metal — how bells are founded, why brass is not bronze, what a cupola melts and a core withstands — by Simpson Bolland, the trade's great teacher.
This group of sandstone lies below the carboniferous strata, and was called "old" to distinguish it from a series of similar strata which occur above the coal-measures. See NEW RED-SANDSTONE.