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The boy travellers in the Far East : adventures of two youths ... - Library

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BOXIXG THE COJIPASS. 73<br />

FRANK STUDYING NAVIGATION.<br />

" Cei-ta<strong>in</strong>ly, I can," Frank answered, and tlien began: "Nortli, north<br />

by east, north-nortlieast, nor<strong>the</strong>ast by north, nor<strong>the</strong>ast, nor<strong>the</strong>ast by east,<br />

east-nor<strong>the</strong>ast, east by north, east—<br />

"That wiU do,'' said <strong>the</strong> Doctor; "yon liave given one quadrant, or a<br />

quarter <strong>of</strong> <strong>the</strong> circle ; I'm sure you can do <strong>the</strong> rest easily, for it goes on <strong>in</strong><br />

<strong>the</strong> same way."<br />

"You see," Fi-ank cont<strong>in</strong>iied, "that you know by <strong>the</strong> compass exactly<br />

<strong>in</strong> what direction you are go<strong>in</strong>g ; <strong>the</strong>n, if you know liow many miles you<br />

go <strong>in</strong> a day or an hour, you can calculate your place at sea.<br />

"That mode <strong>of</strong> calculation is called ' dead -reckon<strong>in</strong>g,' and is quite<br />

simple, but it isn't verj' safe."<br />

" Why so «" Fred asked.

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