Vide Appendix C.) Dampier remarks that Rosemary Island is two hundred and thirty-two miles east of the meridian of Shark's Bay; this, applied to the longitude of that place, will make it in 117 degrees 12 minutes, which is only 35 minutes east of my Courtenay Head.
This group was named by the French Dampier's Archipelago, and as there is ample proof of its being the place which that navigator visited, the name has been admitted by us; but we have also extended it to the islands forming the east side of Mermaid's strait, which are laid down by the French as a part of the mainland..