. Primary Material: Book Subject(s): Witmer, Abraham. Bridges--Pennsylvania--Lancaster County. Conestoga Bridge (Lancaster, Pa.) Witmer's Bridge (Lancaster, Pa.) Publisher: Lancaster, Pa. : Lancaster County Historical Society, 1916 Description: 155-174 p. : ill. ; 23 cm. Series: Journal of the Lancaster

.) Newspapers--Pennsylvania--Lancaster County. Lancaster County (Pa.)--Social life and customs. Publisher: Lancaster, Pa. : Lancaster County Historical Society, 1908 Description: [71]-81 p. ; 23 cm. Series: Journal of the Lancaster County Historical Society ; v. 12, no. 2 Call Number: 974.9 L245 v.12 Location

structure evolved from a prehistoric form containing the essential core and crucible.' The transition from the mid-fifteenth century European blast furnace to the early nineteenth century charcoal furnace of Pennsylvania was gradual. Technological changes occurred chiefly in the shape and size of the

were not in operation. 1° Puddling furnaces in eastern Pennsylvania tended to use anthracite coal, according to Temin, the proximity of the mines and the earlier development of canal and rail transportation in the East being advantageous. The Safe Harbor Rolling Mill was cited by Temin as using

TheBeginningsofArtificialRoadsin Pennsylvania. Some time ago I came across an article published in the Pennsylvania Gazette of February 20, 1772, signed " Clericus." It indicated that the first move looking towards the building of a turnpike from Philadelphia to Lan- caster had originated among the

years. She was a birth-right Quaker, but John West was not. He came to Pennsylvania in 1714, but only joined the Meeting about 1759. It is said by Harris, in his Biographical History, that Benjamin West came to Lancaster in 1749, and that, while there, at the suggestion of William Henry, he painted his