Field Notebook: Maryland, Washington, DC 1921
Page 88
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
The following label is copied and in part, Leedham section. From Heldbury Group. Wm Pent Crinoidal Wm Pent. Centilla Firestone Deltby Shale L. Pent. Crinoidal L. Pent. Fornerid Tentaculite li. stone Black Marble Mud stone Care spee, stactelk etc Clay Falls Suttonianite Batwing Hydrocarbo Cement. Cralline Lemi-stone Iron pyrite, nodules " " vein Alum shale Jordan Kim sandstone.