^{page 358 note 1} Reprinted from the “Ottawa Naturalist,” Journal of the Ottawa Naturalists’ Club, vol. xvii (1903), pp. 33–34, May Number, Ottawa, Canada.

^{page 359 note 1} Abstracted from a paper read before the North fo England Institute of Mining and Mechanical Engineers in June, 1903, and published in the Transactions of the Institute for the current year.

^{page 359 note 2} “Life-Zoues in the British Carboniferous Rocks: Report of the Committee”: Report British Association, Bradford, 1900, pp. 340–342.Google Scholar

^{page 361 note 1} Abstract of a paper read before the Royal society of London, June 11th, 1903