Black-Lead Ore, as it is usually called, though, by the Way, our common Lead is the true Black-Lead, and so called in Opposition to Tin, which is the White-Lead. This is not allowed by Dr. Plot to have any Thing of Metal in it (g)(g) Phil. Trans. N° 240., but esteemed a Sort of Ochre. This was brought me by Mr. John Clark from Crosthwait Parish near Keswick in Cumberland, said to be the only Place where it is found in Europe (h)(h) Fuller's Worthies, pag. 215., as New-England is in America: So that this Nigrica Fabrilis, as Dr. Merret calls it (i)(i) Merret's Pinax inter terras, p. 218., so useful for Painters, &c. is the peculiar Product of Old and New England. A large Piece of the like. Don. D. Sam. Molineux Arm.