If any one wished to preserve his crop, his house, his garments, or anything else, he made it tapu: a tree which had been selected in the forest for a canoe, a patch of flax or raupo in a swamp which an individual might wish to appropriate to himself, and which he could not then do, he rendered tapu by tying a band round the former, with a little grass in it, or by sticking up a pole in the swamp with a similar bunch attached. If a person had been taken prisoner in war, and a feeling of pity arose in the breast of one of his captors, though it may have been the general determination to put him to death, the desire of the merciful individual would prevail, by throwing his garment over him; he who then touched the prisoner with a hostile intention, touched also his preserver. An instance of this kind occurred during the late war at Wanganui. One of the inhabitants was captured by the hostile natives; he was on the point of being put to death, when an old chief rushed forward and threw his blanket over him. The man was spared, and afterwards was treated with great kindness, as though he were one of the tribe. Formerly every woman was _noa_, or common, and could select as many companions as she liked, without being thought guilty of any impropriety, until given away by her friends to some one as her future master; she then became tapu to him, and was liable to be put to death if found unfaithful. The power of the tapu, however, mainly depended on the influence of the individual who imposed it. If it were put on by a great chief, it would not be broken; but a powerful man often broke through the tapu of an inferior. A chief would frequently lay it on a road or river, so that no one could go by either, unless he felt himself strong enough to set the other at defiance. The duration of the tapu was arbitrary, and depended on the will of the person who imposed it, also the extent to which it applied. Sometimes it was limited to a particular object, at other times it embraced many; some persons and places were always tapu, as an ariki or tohunga and their houses, so much so that even their very owners could not eat in them, therefore all their meals were taken in the open air. The males could not eat with their wives, nor their wives with the male children, lest their tapu or sanctity should kill them. If a chief took a fancy for anything belonging to another who was inferior, he made it tapu for himself by calling it his backbone, and thus put as it were his broad arrow upon it. A chief anxious to obtain a fine large canoe belonging to an inferior who had offended him, merely called it by his own name, and then his people went and took it.