A dangerous shoal seen Septr. the 28, 1767 [cartographic material] : The south end of Mindanao ; Joseph Freewills Islands.Hawkesworth, John, 1715?-1773[1773]Cross Collection 71.Depths shown by soundings.From Hawkesworth's Account of the voyages undertaken by the order of His present Majesty for making discoveries in the Southern Hemisphere. London: Printed for W. Strahan and T. Cadell, 1773; v. 1, facing p.cartographic