501 



CM* Sin. 1* 4.6.- 

 -.' Log. P 1 6.S5136 

 Twgf $ C 9.4*228 



CIRCLE. 



-557 

 Log. o' <;..;;OH 



Cot. i 7<i4 



41.71 



S1.T3 = Reduction required. 



w 15.70 



Reduced angJc=5J 1: M.U7 the Mine M above. 



TADLBS/or reducing Angles measured by the repeating 

 Circle. 



TABLE I. 

 Reduction of the Auglei to the Horizon. 



f Sum and Difference of 

 Argument. (H+A)and(H *) \ the Altitude of the 



RionaM. 



Signals. 



6000. in. yer. 



Circle. 



TABLE II. 

 Arg. (P + Q, and(P Q.) 



