Their Malay masters furnished the Sea-Dayaks, whom they had converted into predatory savages, with ammunition and guns, and sent them either to sea to attack merchant vessels, or up the rivers to fall upon villages of peaceful tribes; then the men were slaughtered, the women and children carried off into slavery. The villages were burnt, and by a refinement of cruelty the fruit trees cut down and standing crops destroyed, from which the principal provision of the natives was gathered, so as to reduce to starvation those who had escaped into the jungle. Land-Dayak tribes that formerly had been numerous and prosperous were reduced to small numbers and to poverty. One that reckoned 230 families dwindled to 50. Three whole tribes were completely exterminated. One of 120 families was brought down to two, that is to say, of 960 persons only 16 were left. The population that had consisted of 1795 families, or, reckoning eight persons to each family, 14,360 souls, in ten years was reduced to 6792 souls showing a decrease in these ten years of 946 families, or of 7568 persons. On Sir James (then Mr.) Brooke's visit to the country in 1840, in converse with the chief of one of the native tribes, the man told him, "The Rajah takes from us whatever he wants, at whatever price he pleases, and the pangirans take whatever they can get for no price at all." "At first," says Mr. Brooke, "the Dayak paid a small stated sum as an acknowledgment of vassalage, by degrees this became an arbitrary and unlimited taxation, and now, to consummate the iniquity, the entire tribes are pronounced slaves and liable to be disposed of."
The natural result of such treatment was that those natives who escaped spoilation and slaughter fled up the country beyond reach of their persecutors. The depopulation from the same cause went on in the neighbourhood of Bruni as well as in Sarawak. Mr. Spenser St. John says in 1858: "It is melancholy to see this fine district (Limbang), once well cultivated, now returning to jungle; formerly where the population extended a hundred miles beyond the last village at present inhabited, the supply of provisions was ample at Bruni. Now that the natives are decreasing, while Bruni is perhaps as numerous as ever, the demands made by the nobles are too great even for the natives' forbearance, and in disgust they are gradually abandoning all garden cultivation. Already brushwood is taking the place of bananas and yams, so that few of either are to be had. The people say it is useless for them to plant for others to eat the whole produce. Then as the natives cannot furnish the supplies exacted of them by the pangirans, these latter take from them their children; the lads are circumcised and made Mahomedans and slaves, and the girls are drafted into the already crowded harems of the rajahs." The same writer gives an instance or two of the manner in which the subject natives were treated. In 1855, the warlike Kayans of the interior descended the Limbang river and threatened a tribe of Muruts. The Pangiran Makota,[75] virtual governor of Bruni, met them and arranged with the chiefs that for the sum of £700 they should spare these Muruts. Then he set those who were menaced to collect the money. When they had done this and placed the sum in his hands, he pocketed it and returned to Bruni, leaving the Kayans to deal with the tribe after their own sweet will.