Vol. s3-44, Issue 264, 1892December 01, 1892 EDT
Notes on the Cambrian Rocks of Pennsylvania and Maryland, From the Susquehanna to the Potomac
Notes on the Cambrian Rocks of Pennsylvania and Maryland, From the Susquehanna to the Potomac
Charles Doolittle Walcott,
Walcott, C. D. (1892). Notes on the Cambrian rocks of Pennsylvania and Maryland, from the Susquehanna to the Potomac. American Journal of Science, s3-44(264), 469–482. https://doi.org/10.2475/ajs.s3-44.264.469