Moreover, customs which are altogether repugnant to modern ideas are checked or prohibited by the new Government; as, for example, the time-honoured custom of a tribe periodically balancing the account of the number of heads taken or lost by it from or to another tribe, an audit which, it is strange to say, almost invariably results in the discovery on the part of the stronger tribe that they are on the wrong side of the account and have a balance to get from the others. These hitherto interminable feuds, though not altogether put a stop to in the interior, have been in many districts effectually brought to an end, Government officers having been asked by the natives themselves to undertake the examination of the accounts and the tribe who was found to be on the debtor side paying, not human heads, but compensation in goods at a fixed rate per head due. Another custom which the Company found it impossible to recognize was that of _summungap_, which was, in reality, nothing but a form of human sacrifice, the victim being a slave bought for the purpose, and the object being to send a message to a deceased relative. With this object in view, the slave used to be bound and wrapped in cloth, when the relatives would dance round him and each thrust a spear a short way into his body, repeating, as he did so, the message which he wished conveyed. This operation was performed till the slave succumbed. The Muhammadan practice of cutting off the hair of a woman convicted of adultery, or of men flogging her with a rattan, and that of cutting off the hand of a thief, have also not received the recognition of the Company's Government. It has been shewn that the native population of North Borneo is very small, only about five to the square mile, and as the country is fertile and well-watered and possesses, for the tropics, a healthy climate, there must be some exceptional cause for the scantiness of the population. This is to be found chiefly in the absence, already referred to, of any strong central Government in former days, and to the consequent presence of all forms of lawlessness, piracy, slave-trading, kidnapping and head-hunting. In more recent years, too, cholera and small-pox have made frightful ravages amongst the natives, almost annihilating some of the tribes, for the people knew of no remedies and, on the approach of the scourge, deserted their homes and their sick and fled to the jungle, where exposure and privation rendered them more than ever liable to the disease. Since the Company's advent, efforts are being successfully made to introduce vaccination, in which most of the people now have confidence.