The musci & hepaticae of the northern United States, (from New England to Pennsylvania and Wisconsin) contributed to Gray's Manual of the botany of the northern United States,

Mode of access: Internet.

Pennsylvania; political, governmental, military and civil,

[v. 1] Governmental.--[v. 2] Political.--[v. 3] Military.--[v. 4] Physical.--[v. 5] Biographical.

The geology of Pennsylvania; a government survey: with a general view of the geology of the United States, essays on coal-formation and its fossils, and a description of the coalfields of North America and Great Britain,

Vol. II, pt. I-II, paged continuously.

Official proceedings of the Republican convention convened in the city of Pittsburgh, Pennsylvania, on the twenty-second of February, 1856.

Cover title (p. [1]). At head of title: Republican documents.

Return of the Pennsylvania troops in the service of the United States, August 7, 1787, commanded by Josiah Harmar /

Mode of access: Internet.

Pennsylvania workmen's compensation and occupational disease laws.

Vols. for 19__ issued as the department's Special bulletin.

Study of the feasibility of a regional railroad system for northwest Pennsylvania /

Mode of access: Internet.

Pennsylvania library and museum notes.

Publication suspended May 1917 to December 1919, inclusive.

Konneautt Lake : a story of early times in north-western Pennsylvania.

Mode of access: Internet.

Classification. : Class P, subclass PT, part 2: Dutch and Scandinavian literatures.

Mode of access: Internet.

The Pennsylvania medical journal.

Description based on: Vol. 26, no. 6 (Mar. 1923); title from cover.

Danville, Montour County, Pennsylvania : a collection of historical and biographical sketches /

Includes index.

Bulletin of the Ayer Clinical Laboratory of the Pennsylvania Hospital.

No. 13-18 called also v.3

The Pennsylvania magazine of history and biography.

Some issues also have a theme title.

Pennsylvania, the keystone : a short history /

Bibliography: p. 6.