"There is no evidence that the Swedish and Dutch settlers on the Delaware made any attempt to manufacture iron. In the Journal of a Voyage to New York, in 1679 and 1680... it is expressly declared that iron ore had not been seen... on Tinicum island, or elsewhere in the neighborhood. Jasper Dankers says: "As to there being a mine of iron ore upon it, I have not seen any upon that island, or elsewhere; and if it were so, it is of no great importance, for such mines are so common in this country that little account is made of them.""