Not that the chronometer in the cabin was seldom to be relied on, or was any ways fidgety; quite the contrary; it stood stock-still; and by that means, no doubt, the true Greenwich time--at the period of stopping, at least--was preserved to a second.
The mate, however, in addition to his "Dead Reckoning," pretended to ascertain his meridian distance from Bow Bells by an occasional lunar observation.

This, I believe, consists in obtaining with the proper instruments the angular distance between the moon and some one of the stars.

The operation generally requires two observers to take sights, and at one and the same time.
Now, though the mate alone might have been thought well calculated for this, inasmuch as he generally saw things double, the doctor was usually called upon to play a sort of second quadrant to Jermin's first; and what with the capers of both, they used to furnish a good deal of diversion.

The mate's tremulous attempts to level his instrument at the star he was after, were comical enough.

For my own part, when he did catch sight of it, I hardly knew how he managed to separate it from the astral host revolving in his own brain.
However, by hook or by crook, he piloted us along; and before many days, a fellow sent aloft to darn a rent in the fore-top-sail, threw his hat into the air, and bawled out "Land, ho!" Land it was; but in what part of the South Seas, Jermin alone knew, and some doubted whether even he did.