Scale: circa 1:1,500,000 (lat). Chart with five insets:1.Comoro Island Maroni Anchorage from a French Government Plan of 1879 with additions by Nav Lieut JE Tully RN 1879 [circa 1:35,000 (bar)]; 2. Mohilla Island Fumboni Bays and Road by Mr J Richards Master RN 1848 [circa 1:35,000 (bar)]; 3. Mohilla Island Numa Choa Anchorage by messers Cloue and Daras of the French Navy 1845 [circa 1:150,000 (bar)]; 4. Johanna Island Johanna Road by Mr J Richards Master RN 1848 [circa 1:35,000 (bar)]; 5. Johanna Island Pomony Harbour by Mr JA Petch Act. Master RN 1859 [circa 1:17,000 (bar)]. Co-ordinates given; magnetic variation marked.