The head being cut off, the hair is removed, and so are the eyes; the places of which are filled up with pledgets of tow, over which the eyelids are sewed. Pieces of stick are then placed in the nostrils in order to keep them properly distended, and the head is hung in the smoke of the wood fire until it is thoroughly saturated with the pyroligneous acid. The result of this mode of preparation is, that the flesh shrinks up, and the features become much distorted; though, as the Maori warrior always distorts his countenance as much as possible before battle, this effect is rather realistic than otherwise. It is often said that heads prepared in this fashion are proof against the attacks of insects. This is certainly not the case, as I have seen several specimens completely riddled by the ptilinus and similar creatures, and have been obliged to destroy the little pests by injecting a solution of corrosive sublimate. In spite of the shrivelling to which the flesh and skin are subject, the tattooing retains its form; and it is most curious to observe how the finest lines completely retain their relative position to each other. Not only are the heads of enemies treated in this fashion, but those of friends are also preserved. The difference is easily perceptible by looking at the mouth, which, if the head be that of a friend, is closed, and if of an enemy, is widely opened. Some years ago, a considerable number of these preserved heads were brought into Europe, having been purchased from the natives. Of late years, however, the trade in them has been strictly forbidden, and on very good grounds. In the first place, no man who was well tattooed was safe for an hour, unless he were a great chief, for he might at any time be watched until he was off his guard, and then knocked down, killed, and his head sold to the traders. Then, when the natives became too cautious to render head hunting a profitable trade, a new expedient was discovered. It was found that a newly tattooed head looked as well when preserved as one which had been tattooed for years. The chiefs were not slow in taking advantage of this discovery, and immediately set to work at killing the least valuable of their slaves, tattooing their heads as though they had belonged to men of high rank, drying, and then selling them.