We now had him all aboard. The jaw was dragged forward and secured, and several employed in cutting the blubber from the pans; it measured twenty feet in length and had in it forty-eight ivory teeth, many of them weighing a pound or more. The case was then opened, and a boatsteerer jumped into and prepared to dip out the unctuous matter, which in this part of the head is fluid; for what purpose designed I know not, but no doubt it is a provision of Providence that has its uses, although we cannot discern them. From this vast receptacle for oil we bailed some twelve barrels of the pure spermaceti. The junk was then cut into horse pieces, and these, with the other blubber from around the head and jaw, were rendered out and stowed in casks marked “head;” it being by far the most valuable portion of the whale, and commanding a better price. The head of the sperm whale generally yields about two-fifths of the oil procured from the entire fish. After finishing with the head matter, we proceeded with the residue the same as with the right whale formerly mentioned. On boiling the body blubber, we found it exceedingly poor, and were not at all surprised at the whole yield being only seventy-two barrels--his size auguring at least a hundred. He was seventy-five feet long. In appearance, this whale does not bear the slightest resemblance to the right whale--its massive head differing from the latter; neither has it the bonnet, as the right whale, infested by barnacles and vermin; its body is not so thick; it is longer, and on the back, near the small, a ridge rises which is known as the bump; the flukes, too, are smaller; and the skin, instead of being black as ebony, is of a slate color, frequently mottled with white--around the head presenting an appearance like marbling; beneath the skin, on the head, is found short, stiff, hair, and between the hair and skin an alkaline substance which is a solvent for oil--it is used for washing clothing and the paint work.