Off-hand sketches: pt. I. The valley of the Schuylkill; pt. II. The anthracite coal formation; pt. III. Wyoming -- Locomotive sketches, with pen and pencil. From Philadelphia to Pittsburg -- Pedestrian sketches: pt. IV. Sunbury to Lake Erie.
Reproduction
Microfiche. Chicago : Library Resources,inc., 1970. 1 microfiche ; 8 x 13 cm. (Library of American civilization ; LAC 13435)