Hewitt, Roger A. “History of Geology: Paleontological Work of Lt. Col. C.C. Grant on the Silurian Rocks of the Niagara Escarpment at Hamilton, Ontario”. Geoscience Canada 13, no. 4 (December 12, 1986). Accessed May 3, 2024. https://journals.lib.unb.ca/index.php/GC/article/view/3479.