Scale circa 1:300,000). Bound in 1889 New York - Canso Cables Folder. Chart No 3. Black and white chart. Mss cable routes marked in red, green, blue and yellow. Mss note 'Tube soundings taken while laying the 1889 New York cables are shown as thus:- 65' (in blue) . Mss note 'Pole Star observations are marked in the meridians in which they were taken' (in red).