Gift of the Academy of Natural Sciences of Philadelphia, 1997
Accession Lot
- Object[158]
- no[158]
- american[158]
- albany county[1]
- bainbridge (pennsylvania)[12]
- bedford county (virginia)[1]
- berks county[2]
- big timber creek[30]
- brandywine[2]
- bucks county[2]
- chattanooga[2]
- chester county[2]
- chickies[2]
- conoy township[2]
- dauphin county[1]
- delaware county (pennsylvania)[3]
- delaware river[2]
- doylestown[2]
- east tennessee[1]
- eastern united states[3]
- edgefield county[1]
- florida[9]
- forge island[2]
- georgia[2]
- gloucester county[31]
- grassy cove[2]
- lancaster county (pennsylvania)[86]
- laudenville[1]
- liberty county[2]
- markham[3]
- marsh run[2]
- monmouth county[1]
- monroe county (pennsylvania)[2]
- new jersey[32]
- new york[1]
- north america[135]
- ohio[3]
- pennsylvania[102]
- rock retreat[2]
- south carolina[1]
- tallahassee[9]
- tennessee[3]
- united states of america[155]
- virginia[1]
- washington boro[30]
- witmer's farm[27]
- argillaceous material[158]
- shale[1]
- yes[2]
