Subject
- Ferns--Southern States17
- Fungi--Catalogs and collections--America15
- Shells--Catalogs and collections--History15
- Grasses--Southern States13
- Shells--Collectors and collecting10
- Shells--South Carolina10
- Shells--United States10
- Algae--United States8
- Geology--East (U.S.)8
- Invertebrates, Fossil--Southern States8
- Geology--America7
- Naturalists--History7
- Shells--Atlantic Coast (North America)7
- Trilobites--North America7
- Geology--North America6
- Mollusks--Southern States6
- Entomology5
- Fossils--Catalogs and collections5
- Lepidoptera5
- Trace fossils5