PLUMBAGO, or BLACK-LEAD. See GRAPHITE, MINERALOGY Index.
PLUMBAGO, or BLACK-LEAD
sub_entry · 56 chars · cross-reference · lineage ↗ · page image at NLS ↗
sub_entry · 56 chars · cross-reference · lineage ↗ · page image at NLS ↗
PLUMBAGO, or BLACK-LEAD. See GRAPHITE, MINERALOGY Index.