In 1751 there was a forge for the conversion of pig-iron into bar-iron — Iron

"Iron yields to certain degrees of beatings or repeated pressure; its impenetrable molecules, purified by man and made homogeneous, disintegrate; and, without being in fusion, the metal no longer has the same virtue of resistance. Marshals, locksmiths, tool makers, all the workers who constantly work this metal then express the state of it by a word of their technology: "The iron is retty!" they say, appropriating this expression exclusively devoted to hemp, the disorganization of which is obtained by retting. Well, the human soul, or if you will the threefold energy of body, heart, and spirit, is in an iron-like situation, as a result of certain repeated shocks. It is thus with men like hemp and iron — they are retty."

"33 His legs of iron, his feet part of iron and part of clay. 34 Thou sawest till that a stone was cut out without hands, which smote the image upon his feet that were of iron and clay, and brake them to pieces. 35 Then was the iron, the clay, the brass, the silver, and the gold, broken to pieces together, and became like the chaff of the summer threshingfloors; and the wind carried them away, that no place was found for them: and the stone that smote the image became a great mountain, and filled the whole earth. 40 And the fourth kingdom shall be strong as iron: forasmuch as iron breaketh in pieces and subdueth all things: and as iron that breaketh all these, shall it break in pieces and bruise. 41 And whereas thou sawest the feet and toes, part of potters clay, and part of iron, the kingdom shall be divided; but there shall be in it of the strength of the iron, forasmuch as thou sawest the iron mixed with miry clay. 42 And as the toes of the feet were part of iron, and part of clay, so the kingdom shall be partly strong, and partly broken. 43 And whereas thou sawest iron mixed with miry clay, they shall mingle themselves with the seed of men: but they shall not cleave one to another, even as iron is not mixed with clay. 45 Forasmuch as thou sawest that the stone was cut out of the mountain without hands, and that it brake in pieces the iron, the brass, the clay, the silver, and the gold; the great God hath made known to the king what shall come to pass hereafter: and the dream is certain, and the interpretation thereof sure."

"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.""

"There is nothing of greater interest connected with the Durham furnace than the manufacture of iron stove plates and their artistic embellishments. ...[T]he manufacture of iron stoves, for heating of buildings, was begun at the furnace about 1741, when controlled by George Taylor, James Logan and James Morgan, father of General , iron master. These were called the "Adam and Eve" stoves from the figures, cast on them. ...In 1745, the furnace began casting the famous "Franklin Stove," or fire-place, and continued until it blew out, 1793. They were favorably received and with minor improvements, extensively manufactured. It was the first stove made that could be utilized for baking and cooking, having an extra door above the fuel door, a plate the whole length of the stove and a descending flue the same as the Prince Rupert stove, 1678, cast in England. It was improved, 1754, by a door on one side. This was known as the Philadelphia pattern, though smaller in size. The Franklin sold at £4. 6s, each at the furnace, and at Philadelphia £18 per ton, the price varying with the metal. About 1775, a stove pattern, artistically decorated with a bony skeleton inscribed on the center of the side plates, grasping a bone in one hand in the act of striking a man, near the end of the plate, while another figure on rear end of plate is standing in a frightened attitude looking on the unequal battle. Beneath the figures is the following inscription:HIR. FEIT. MIT. MIR. DER. BITER. TOTER. BRINCT. MICH.INTOTS. NO.A free translation of this Swedish-German is "Here (man) presumes to fight with me, bitter death, but he cannot overcome death."

"The significant thing about the Darbys and coke-iron is not that the first Abraham Darby "invented" a new process but that five generations of the Darby connection were able to perfect it and develop most of its applications."

"Ferreus assiduo consumitur anulus usu. (The iron ring is worn out by constant use.)"