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Diagram for felling Hme from Polaris, 1942. 



When the Guards are on the hne under the West the North 

 Star is above the Pole three degrees and a half. 



When the Guards are at the Foot, the Star is three degrees 

 above the Pole. 



When the Guards are on the Line below the East Arm the Star 

 is above the Pole half a degree. 



And when you take the altitude of the Star, and the Guards are 

 in some one of these four positions where the Star is above the 

 Pole, from the altitude that you take of the Star, you should know, 

 you subtract as many degrees as the Star is above; and the degrees 

 which remain are as many as you are removed from the equator. 



