21
Author: Moak, Jefferson M.
Published 1994
Record Source: Published Materials
Subjects and Genres: '; ...Naturalization records Pennsylvania Philadelphia....
Book
22
Published 2011
Record Source: Published Materials
Contents or Abstract: '; ... / James N. Green -- Illustrating nature : institutional support for art and science in Philadelphia, 1770...
Book
23
Author: Clemson, Thomas Green, 1807-1888.
Published 1834
Record Source: Published Materials
Subjects and Genres: '; ...Geology Pennsylvania York County Surveys....
Book
24
Author: Osborne, Peter.
Published 2017
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania Philadelphia Region Guidebooks....
Book
25
Author: Smith, George, 1804-1882.
Published 1862
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Penn. Delaware Co....
Book
26
Author: Clemson, Thomas Green, 1807-1888.
Published 1834
Record Source: Published Materials
Subjects and Genres: '; ...Geological surveys Pennsylvania York County....
Book
27
Author: Smith, George, 1804-1882.
Published 1976
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania Delaware County....
Book
28
Author: Formigli, Donald.
Published 2017
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania Philadelphia Region Guidebooks....
Book
29
Author: Lea, Isaac, 1792-1886.
Published 1855
Record Source: Published Materials
Subjects and Genres: '; ...Mollusks Pennsylvania Schuylkill County....
Book
30
Author: Lea, Isaac, 1792-1886.
Published 1855
Record Source: Published Materials
Subjects and Genres: '; ...Mollusks Pennsylvania Schuylkill County....
Book
31
Author: Tatnall, Edward, -1898.
Published 1860
Record Source: Published Materials
Subjects and Genres: '; ...Botany Delaware Newcastle County....
Book
32
Published 1775
Record Source: Published Materials
Subjects and Genres: '; ...Germans Pennsylvania Philadelphia Newspapers....
Newspaper
33
Creator: Wayne, William H.
Record Source: Archival Materials
Contents or Abstract: '; ...Wayne was a Philadelphia clerk. His diary, 1831-1835, contains notes on odd and natural phenomena...
Manuscript
35
Contents or Abstract: '; ... of Natural Sciences, the Historical Society of Pennsylvania, and the American Philosophical Society. However...
Link to finding aid
Manuscript
37
Contents or Abstract: '; ..., researcher, and writer. He also held several public offices in Pennsylvania. The collection covers all...
Link to finding aid
Manuscript
38
Author: Smith, George, 1804-1882.
Published 1862
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Penn. Delaware Co....
Microfilm
39
Contents or Abstract: '; ... in the Constitutional Convention; a manuscript draft of Wilson’s “Considerations on the Nature and Extent...
Link to finding aid
Manuscript
40
Contents or Abstract: '; ...Benjamin West was raised in Delaware County, Pennsylvania, and worked most of his life as an artist...
Link to finding aid
Manuscript