The four sheets comprising the map are: Africa, plate I: The Northwest part examined and revised by Mr Bolton; Africa, plate II: The Southwest part [mis-labeled; plate II depicts the South East of Africa including the islands of Madagascar, Bourbon and Isle de France [Mauritius] and should be labeled The Southeast part]; Africa, plate III: The Southwest part (including the island of St Helena); and Africa, plate IV: The Northeast part (including the cartouche). This detailed map of Africa includes copious notes on the terrain and the people occupying the various areas depicted., Relief shown pictorially., Inset: Asores.