Joseph Slevin, 1938

• Chart is unidentified but appears to be a copy of an inset on British Admiralty chart 1375.
• Inset is enlarged view of lagoon area.
• Bearings from Porter's Journal of a Cruise.
• Red circle indicates Slevin's assumption of H. M. S. Briton anchorage.
• Slevin: “Cowan's grave should be in shaded area.”
• Slevin: “Remarkable hill mentioned by Lieut. Shillibeer, H. M. S. Briton.” (shown circled)