The Pennsylvania-German in the field of the natural sciences
Porter, Thomas C. (Thomas Conrad),
1822-1901
creator
text
book
Philadelphia
1896
1896
ENG
Natural history
Pennsylvania
Scientists
Pennsylvania-German Society. Proceedings, vol. vi
https://www.biodiversitylibrary.org/bibliography/23546
5249363
10.5962/bhl.title.23546
MOA