[P] Hall's Guide,—via Omaha, Denver, and Salt Lake.
[Q] Report of the Secretary of the Treasury, 1857.
[R] Paper read before the British North American Association, July 21, 1864.
[S] Vancouver's Island and British Columbia, Maciff, p. 343.
[T] Speech by Lord Bury, quoted by Maciff.
[U] India, China, and Japan, p. 23.
[V] Statistical Journal, 1862.
[W] Statistical Journal, 1862, p. 15.
[X] Vancouver and British Columbia, Maciff, p. 179.
[Y] Agassiz, Lake Superior, p. 124.