BISHOP, Captain R.P. Mackenzie's Rock. With a map showing the course followed by the explorer from Bella Coola, B.C. to the Rock, and illustrated withviews along the route. Introduction and notes by His Honour Judge Howay. H istoric Site Series No.6. (Ottawa) : Dept. of the Interior, n.d. [1924]. Pp(4),5-31,(1),+ folding map. 8vo, wrappers. Waterstain to bottom of both co vers, else vg. 30.00