Books by Howell, Benjamin F.
Upper Cambrian fossils from Bu
Upper Cambrian fossils from Bucks County, Pennsylvania
Burrows of Skolithos and Plano
Burrows of Skolithos and Planolites in the Cambrian Hardyston sandstone at Reading, Pennsylvania
The faunas of the Cambrian Par
The faunas of the Cambrian Paradoxides beds at Manuels, Newfoundland