The history of Bucks County, Pennsylvania : from the discovery of the Delaware to the present time /

Appendix : Flora, by I.S. Moyer--Birds, by Joseph Thomas-Mammals, by Joseph Thomas--Compass. Variations of the compass needle.

Belgium and Germany; a Dutch view

Mode of access: Internet.

Early history of the University of Pennsylvania from its origin to the year 1827.

Mode of access: Internet.

Pennsylvania, colonial and federal; a history, 1608-1907.

Mode of access: Internet.

The rise of the Dutch republic.

Mode of access: Internet.

Redemptioners and indentured servants in the colony and commonwealth of Pennsylvania, [electronic resource]

Bibliography: p. 120-125.

Animal locomotion. The Muybridge work at the University of Pennsylvania.

Mode of access: Internet.

Seeing Pennsylvania,

Bibliography: p. 336-338.

How to name the birds : a pocket guide to all the land birds and to the principal water fowl normally found in the New England states, New York, Pennsylvania and New Jersery, for the use of field ornithologists /

Includes index.

History, manners, and customs of the Indian nations : who once inhabited Pennsylvania and the neighboring states /

Includes bibliographical references and index.

Annual report - Pennsylvania State Geologist.

Atlases accompany 1885; 1886, pt. 3-4.

A sketch of the Pennsylvania Company for Insurances on Lives and Granting Annuities, founded MDCCCIX.

Mode of access: Internet.

Henry Harrison Bingham (late a representative from Pennsylvania) Memorial addresses delivered in the House of Representatives and the Senate of the United States, Sixty-second Congress. Proceedings in the House, May 19, 1912. Proceedings in the Senate, February 27, 1913.

Mode of access: Internet.

Memorial addresses on the life and character of Alexander K. Craig, a Representative from Pennsylvania : deliverd in the House of Representatives and in the Senate /

Published by order of Congress.

Memorial addresses on the life and character of Alfred C. Harmer (late a representative from Pennsylvania), delivered in the House of representatives and Senate, Fifty-sixth Congress, second session.

Mode of access: Internet.