Chapter 1
List of Butterflies observed in the Neighbourhood of Halifax, Nova Scotia [1863] Nova Scotian Institute of Natural Science Proceedings and Transactions volume 2 part 1 1867 pages 87-92. On the Formation and Preservation of Lakes by Ice Action, Geological Society Quarterly Journal volume 20 1864 pages 463-465, Philosophical Magazine volume 28 1864 page 323, Nova Scotian Institute of Natural Science Proceedings and Transactions volume 2 part 3 1867 page 70. The Glacial Period in North America [1866] Nova Scotian Institute of Natural Science Proceedings and Transactions