It may seem unwarrantable to couple in any respect the masthead standers of the land with those of the sea; but that in truth it is not so, is plainly evinced by an item for which Obed Macy, the sole historian of Nantucket, stands accountable. The worthy Obed tells us, that in the early times of the whale fishery, ere ships were regularly launched in pursuit of the game, the people of that island erected lofty spars along the seacoast, to which the lookouts ascended by means of nailed cleats, something as fowls go upstairs in a henhouse. A few years ago this same plan was adopted by the Bay whalemen of New Zealand, who, upon descrying the game, gave notice to the ready-manned boats nigh the beach. But this custom has now become obsolete; turn we then to the one proper masthead, that of a whale-ship at sea. The three mastheads are kept manned from sunrise to sunset; the seamen taking their regular turns (as at the helm), and relieving each other every two hours. In the serene weather of the tropics it is exceedingly pleasant the masthead; nay, to a dreamy meditative man it is delightful.