Second report of the executive board of the Friends' Association of Philadelphia and its vicinity, for the relief of colored freedmen : read at the annual meeting of the contributors, held at Arch Street meeting-house, Philadelphia, 4th month 17th, 1865.

Mode of access: Internet.

TUNNELS OR BRIDGES?

Mode of access: Internet.

A text-book on roofs and bridges,

pt.I. Stresses in simple trusses. 4th ed. enl. 1898.--pt. II. Graphic statics. 1890.--pt. III. Bridge design. 4th ed. rewritten, 1902.

Free bridge at Hudson, Wis. : hearings before the Bridge Subcommittee of the Committee on Interstate and Foreign Commerce, House of Representatives, Seventy-seventh Congress, first session, on H.R. 4314, a bill authorizing the states of Minnesota and Wisconsin, jointly or separately, to acquire bridges now existing ... , May 7, 1941.

Clarence F. Lea, Chairman.

Topographical map with elevations of portion of Crooked Creek and pool, with bridges, roadways and buildings indicated.

Pencil annotations. No scale. 65 cm x 38 cm. No scale. [from photographic copy by Lance Burgharrdt]

Engineer Arch

Mason & Kahn, architects. 1910 addition Kahn & Wilby. Building completed September 1904. Addition 1909-1910. On verso: West Engineering

The Arch [Engineering Building]

Mason & Kahn, architects. 1910 addition Kahn & Wilby. Building completed September 1904. Addition 1909-1910. From southwest

West Engineering Arch and building

Mason & Kahn, architects. 1910 addition Kahn & Wilby. Building completed September 1904. Addition 1909-1910. From diagonal side (northeast).