Note générale :
Depths shown by soundings.
Head of title: North America - west coast. Vancouver Island & British Columbia.
Magnetic variation date 1907.
Includes manuscript additions: location of signal off Chatham Pt. highlighted.
Bottom right corner: Engraved by Davies & Company.
Bottom left corner: Small corrections [to] IV [19]11.
Note sur la mention de responsabilité :
In title block: "The portion in hair line from a preliminary survey by D. Pender, Master R.N., 1863."
Données mathématiques sur les documents :
Scale 1:36 494.
Note sur les dates de création :
Published on 31st July 1902, under the superintendence of Rear Admiral Sir W.J.L. Wharton, with corrections to 1911.