logline

Coordinate term: elevator pitch

Besides the ingenious Pilot knowing the elevation of the Pole in some places of his voyage that he hath passed, by keeping a true, not a dead reckoning of his course in pricking his Card aright, and observing the way with the logge-line, with other currants, will give a very artificiall conjecture of the elevation of the pole in that place where he is, though he sec neither Sunne nor Starres.