Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Rochester Sunday Aug 24-1913.
Just below the Driving Park Bridge one has a fine view of the entire Clinton, and most of the Medina.
Resting directly upon the grey band of the Medina and without transition is the Iroquois shale here 24 feet thick. It's a green shale devoid almost of all fossils other than ferns.
Furnacerville lime stone = 12 miles thick. Towards the base of the Dolobett limestone, don't will be recognized as an independent member as it is included in the [illegible] Dolobett Limestone. A series of greenish thin bedded limestones that come in sharply over the Iroquois shale, including the lime at fuel 14 feet thick.
Towards the top the limestones become thinner with their shale partings and rapidly change into the Williamson shale.
Williamson shale due 24 feet thick. The lower and black (Immography) huts 12 feet are pure pink in color, followed by a zone of about 4 feet thick of green shale with thin limestone bands and 8 feet of green shales. The division of Amphlotherea hemidtherica and Ammophagus clintonensis. Both forms are very common.