To find local time is a simpler matter. The difference between local and standard time is longitude expressed in time—four minutes, we all know, representing one degree. This, briefly, is the principle on which longitude is found independent of chronometers. The work of the lunarian, though seldom practised in these days of chronometers, is beautifully edifying, and there is nothing in the realm of navigation that lifts one’s heart up more in adoration.
