While on a hasty visit to Jackson county, Iowa, this summer, I was taken, by the kindness of Hon. C. M. Dunbar, to a lime quarry near Monmouth, in the western part of that county, about sixteen miles from Maquoketa. I found there in the possession of Mr. Stewart, the owner of the quarry and kiln, some fine specimens of Lepidodron and Calamites, which naturally excited my curiosity (especially as they were so large as to preclude the idea of their having been brought from a distance as specimens), and led me to make special inquiry as to their occurrence.
Proceedings of the Iowa Academy of Sciences
©1890 Iowa Academy of Science, Inc.
"On Some Carboniferous Fossils from Jackson County, Iowa,"
Proceedings of the Iowa Academy of Science, 1(Pt. 2), 115-115.
Available at: https://scholarworks.uni.edu/pias/vol1/iss2/47