_Borneo_ is the largest island in the East Indies, perhaps the largest in the world, being 220 marine leagues from N. to S. and 170 leagues from E. to W. It is divided into many small principalities, of which the most powerful is the king of _Banjaar Masseen_, and after him the kings of _Borneo_ and _Sambas_. The air is reckoned very unwholesome in some places, on account of being low and marshy; and it is only thinly peopled, though abounding in very rich commodities. On the first establishment of the Dutch in India, they were very solicitous to have factories in this island, and accordingly fixed three, at the cities of Borneo, Sambas, and Succadanea; but they soon found it was impossible to have any dealings with the natives, who certainly are the basest, crudest, and most perfidious people in the world; wherefore they quitted the island, and though several times invited back, have absolutely refused to return. The commerce of Borneo is as rich as any in India. At Sambas and Banjaar Masseen they deal in diamonds, of which there is a mine in the interior country. These stones generally run from four to twenty-four carats each, though some are found as high as thirty and even forty carats; but the whole trade does not exceed 600 carats yearly. They always sell these stones for gold, though that is a commodity of the island, and there is a considerable trade in gold-dust at Pahang, Saya, Calantan, Seribas, Catra, and Melanouba. Bezoar is another principal article of their trade. Japan wood, fine wax, incense, mastic, and several other rich gums, are here met with; but the staple commodity is pepper, which this island produces in as great abundance as any place in India. A drug is met with in this island, called _piedro de porco_, or pork-stone, so highly esteemed as to be worth 300 crowns each; as the Indian physicians pretend that they can infallibly discover whether their patients are to live or die, by exhibiting to them the water in which this stone has been steeped.