80 INTRODUCTION TO THE 



could begin ; the labour and skill to be exerted in 



The coast of Brazil, from Sera to Cape Frio, is copied from a 

 small chart of that part by Mr. Dalrymple. 



For the southern part of Africa, from the Cape of Good Hope 

 to Point Natal, I have taken the authority of the chart of Major 

 J. Rennels, F. R. S. shewing the extent of the bank of Lagullus. 



For the existence of the small islands, shoals, and banks to the 

 eastward of Madagascar, together with the Archipelago of the 

 Maldive and Laccidive islands ; for the coasts of Mallacca, part of 

 Cambodia, and the island Sumatra, I have used the latest authority 

 of Monsieur D' Apres de Mannevillette's publications in the Nep- 

 tune Oriental. 



The coasts of Guzerat, Malabar, Coromandel, and the opposite 

 shore, containing the Great Bay of Bengal, and the Island of Cey- 

 lon, and exhibiting the Heads of the Ganges, and Barampooter or 

 Sanpoo rivers, are inserted from the work of the ingenious author 

 of the map of Hindoostan, published in 1782. 



The China sea is laid down from the chart published by Mr. 

 Dalrymple ; but the longitude of Pula Sapara, Pulo Condore, Pulo 

 Timoan, Straits of Banca and Sunda, and the parts we saw are, as 

 settled by us, together with the east coast of Niphon, the principal 

 of the Japanese islands. 



The Jeso and Kurile islands, the east coast of Asia and Kamt- 

 schatka, as well as the sea of Okotsk, and the islands lying between 

 Kamtschatka and America that were not seen in the voyage, are 

 taken from a Russian MS. chart, got by us at the island of Oona- 

 lashka. 



The northern countries from Cape Kanin, near the White Sea, 

 as far east of the River Lena, I have given from the Great Rus- 

 sian map, published at Petersburgh in 1776, including the Euxine, 

 Caspian, and Aral Seas, as also the principal lakes to the eastward; 

 the intent of which is to show the source of the large rivers that 

 empty themselves into the different oceans and seas. 



Every other part of the chart not mentioned in this account, is 

 as originally placed by Captain Cook. 



The whole has been corrected from the latest astronomical ob- 

 servations, selected from the tables compiled by Mr. William 

 Wales, F. R. S. and mathematical master of Christ's Hospital, for 

 the Nautical Almanacs : from those in the Mariner's Guide by 

 the Rev. Dr. Maskelyne, F. R. S. and Astronomer Royal, pub- 

 lished in 1763 ; from the Connoissance des Terns for 1780 and 

 1781; From Professor Mayer's Geographical Table; from the 

 Voyages of Messrs. d'Eveux de Fleurieu, Verdun, de Borda, and 

 Chabet, &c. ; from the Table lately published by Mr. Dalrymple 

 for the use of the East India ships; from the Philosophical Trans- 

 actions of the Royal Society; and from the Observations of our 

 late Navigators. 



HEN. ROBERTS. 



Shoreham, Sussex, May 18. 1784. 



