Mr. Brooke soon found that all his efforts for internal reform must be in a comparative sense futile so long as piracy, that curse of Borneo, was permitted to ravage unchecked. "It is in a Malay's nature," says the Dutch proverb, "to rove on the seas in his prahu, as it is in that of the Arab to wander with his steed on the sands of the desert." No person who has not investigated the subject can appreciate how wide-spread and deep-seated this plague of piracy is. The mere statistics are appalling. It was estimated, in 1840, that one hundred thousand men made freebooting their trade. One single chief had under control seven hundred prahus. Whole tribes, whole groups of islands, almost whole races, despising even the semblance of honest industry, depended upon rapine for a livelihood. "It is difficult to catch fish, but it is easy to catch Borneans," said the Soloo pirates scornfully; and, acting upon that principle, they fitted out their fleets and planned their voyages with all the method of honest tradesmen. This piracy was divided into two branches,--coastwise piracy and piracy on the broad seas. The Sea Dyaks built boats called bangkongs, sixty to a hundred feet long, narrow and sharp, propelled by thirty to fifty oars, and so swift that nothing but a steamer could overtake them. These freebooters were the terror of all honest laborers and tradesmen. Skulking along the coast, pushing up rivers and creeks, landing anywhere and every where without warning, they mercilessly destroyed the native villages and swept the inhabitants into captivity. Or else, impelling with the force of fifty men their snaky craft, which were swift as race-boats and noiseless as beasts of prey, they would surprise at dead of night some defenceless merchantman, overwhelm their victims with showers of spears, and with morning light a plundered boat, a few dead bodies, were the silent witnesses of their ferocity. On the other hand, the Illanum and Balanini tribes, infesting the islands to the northeast of Borneo, undertook far grander enterprises. Putting to sea, prepared for a long voyage, in fleets of two or three hundred prahus, propelled by wind and oars, armed with brass cannon, and manned by ten thousand bold buccaneers, they swept through the whole length of the Chinese Sea, and, turning the southernmost point of Borneo, penetrated the straits and sounds between Java and Celebes, never stopping in their ruthless course until they came face to face with the sturdy pirates of New Guinea, and returned, after a voyage of ten thousand miles and an absence of two years, laden with spoils and captives. How hapless was the fate of the poor Dyak! If he stayed at home, cultivating his fields, his Malay lord fleeced him to the skin. If, thinking to engage in gainful traffic, he hugged the shore with his little bark, the river-pirate snatched him up. If he stood out upon the broad waters, he could scarcely hope to escape the Northern hordes who swarmed in every sea.