There are several fine specimens of crystal found at Kimanis and Sulo; they call them water diamonds. To give full effect to the mines in the kingdom of Sukadana, says the Sultan of Pontiana, and to raise the excess of food required for the additional hands, would together give employment to at least a million of Chinese. Under the British flag, he thinks thousands of new settlers will find their way in the annual junks.

All that extensive range, from Cape Unsing, passing by the Tawi Tawi islands and Sulo, as far as Baselan, is one vast continued bed of pearl-oysters, principally of the Behoren or mother-of-pearl-shell species; these are called by the natives tipi. There is likewise an extensive bed of the Ceylon oyster, called by the Malays kapis; the principal banks of the latter are found in Maludu Bay. The Sulo pearls have, from time immemorial, been the most celebrated, and praised as the most valuable of any in the known world. Pigofetta, the companion of Magalhaens, mentions having seen in 1520 two Sulo pearls in the possession of the Rajah of Borneo as large as pullet eggs. Very large ones, from one to two hundred chaw weight, are at all times to be purchased at Sulo; and there are altogether sold here to the China junks, the Spaniards, &c. more than two laks of dollars worth annually. The quantity of mother-of-pearl-shell, communibus annis, sold there is two thousand piculs, at six dollars a picul. The fishery is partly carried on by the Malays, and partly by the Chinese; the large pearls they endeavor to conceal as much as possible, from a law that all pearls above a certain size of right belong to the sultan. “The small narrow guts,” says Dalrymple in his account of the Sulo seas, “about Tawi Tawi, are the most rich and valuable fishery in the world.” I have had an opportunity of inspecting the banks about Manar and Tutacoryn, as well as all the banks in the Sulo seas; but the former have not banks near as extensive, equaling in the quantity of oysters, in productiveness, size, or richness, the Sulo pearl, nor are they to be compared in any way to the Sulo beds. Still the Ceylon fishery has netted the British Government from one to two laks of pagodas for permitting it to be fished fourteen days annually. As this portion of Borneo belongs to the English, a much greater revenue might be drawn from these vast sources of wealth, under proper management.

As there are no people of sufficient opulence to contract for so vast a fishery, the Company might undertake it themselves; three or four gun-boats would be necessary to protect the fishermen; and a small fort should be erected at Tambisan or Tawi Tawi. But it is necessary to observe, the Sulo people do not practice diving at all, as is the case at Beharen and Ceylon, but only comprehend the slow method of dredging for the tipy with a thing like the fluke of a wooden anchor. It would be a desirable thing, in the event of prosecuting this valuable fishery as a national concern, to obtain forty or fifty Arab divers from Beharen, and perhaps an equal number of Chulias from Nagore and Negapatam, from the number employed annually on the Ceylon fishery. These men would teach the Malay the superiority of diving, which can, in fourteen daysʼ fishing, bring into government a revenue of two laks of pagodas, pay the expenses of the fishery, and enrich all parties concerned; while the Malayan operose plan of dredging perhaps affords but a precarious subsistence. But had they divers, from the extent of the banks, instead of fourteen days in the year, they might, one after another, be fished the whole year round, and never be exhausted. The Chinese fishermen, though laborious, possess no enterprise, and can never be prevailed on to dive, from apprehension of the sharks. The Caffris from New Guinea and the Arroes would be superior to them.

The Sultan of Sulo, in 1810, proposed to me to bring over one hundred Chulia divers from Negapatam on our joint expense and profit: and the divers agreed to go over on receiving each twenty-five rupees advance, their victuals being found, and one-fourth of the produce of oysters allowed them, as at Ceylon. Circumstances, however, occurred to prevent an undertaking which I think must have turned out highly lucrative. They dredge the banks all the year round. The water on the Tahow, Maludu, and Tawi Tawi banks, is from seven to ten fathoms deep; in other places they fish in fifteen fathoms water.

The Malays of Borneo understand the art of cutting, polishing, and setting their diamonds. Gold and silver filagree works they excel in; gunpowder is manufactured at Pontiana; brass cannon is cast at Borneo Proper; iron-shot is run from their mine. They can manufacture and repair krises, and clean their arms. Their carpentry extends to the building and repairing of prows, and the erecting of a hut. Their industry is further exerted in collecting birdsʼ-nests and wax; in cutting rattan and felling timber; in the pearl and tripan fisheries; or as mariners in commercial or piratical pursuits. The tillage of the ground and the edible fisheries are often left to the more indefatigable industry of the Chinese. For the exercise of every other useful occupation also, the mechanical and scientific arts, and the labor of the mines, these indolent savages are indebted solely to the superior industry and civilization of the Chinamen.

The amusements of the Malays in other parts are unpractised on the shores of Borneo: the only ones I ever saw were flying the kite, swimming, and the songs of their women; this latter is confined to the rajahs.

Wherever a water-communication on Borneo presents, the indolence of the Malay will not permit him to think of the construction of a road. In the interior, however, there are pathways in all directions; about Mompava, where the river is narrow and shallow, they have constructed several roads. Being a people much occupied in maritime pursuits, they prefer, like the amphibious Dutch, traveling by rivers, or the innumerable cuts, canals, and creeks, which everywhere intersect the country: beside, their prows afford more protection from surprise, and they conceive their town as safer by being surrounded by a jungle and situated in a swamp; nor have they any conception beyond water-carriage.

Their laws neither depend upon the Koran nor any written code, human or divine, beyond the whim and caprice of the chief (assassin) and his gang of desperadoes. The Sultan of Pontiana has, however, established the following regulations:

Punishments for murder:—Life for life, except when the parties can commute the same by fine.