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Library records, 1891-2003 (inclusive)
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: German Society of Pennsylvania: Joseph P. Horner Memorial Library [Contact Us]
Held at: German Society of Pennsylvania: Joseph P. Horner Memorial Library [Contact Us]
Held at: Pennsylvania Horticultural Society [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Drexel University: College of Medicine Legacy Center [Contact Us]
Held at: Wagner Free Institute of Science [Contact Us]
Held at: Wagner Free Institute of Science [Contact Us]
Held at: Wagner Free Institute of Science [Contact Us]