258 LUXAR CALCULATIONS. 



Log. COS. 84°. 46' 8.9600517 



5°. 6' 9.9982772 



2)18.9583289 



9.4791644 

 Log. sin. 39 ^ 57'. 3 Y' 9.8077084 



2d Sum 19.2868728 



DifF. sums = log. tan. B. (=24^.46'. +)9.6642136 



As. comp. correspond, log. cos. . « 0.0419345 

 Log. sin. 39°- 57'. 37" 9.8077084 



Sum=log. sin. 45^. 1'. 15". 15 as before 9.8496429 



Ovy by the Fourth Rule, 



-.bythefourth ^s. comp. log. sin. 44*>. 59'' 3" 0.1506351 



"^Z* Log. sin. 39°. 50' 9.8065575 



Log. cos. A. (= 25°. 1'. +) 9.9571926 



Log. sin. A 9.6263301 



BifF. bet. it and the above as corap. 9.4756950 



2 



18.9513900 



Ar. comp. log. cos. 84**. 46' 1.0399483 



5''. 6' 0.0017228 



Log. cos. 84°. 51'. 30". -., 8.9523977 



4°. 56'. 16". .- 9.9983852 



2)38.9438440 



Half-sum 19.4T 19220 



log. sin. 3^^. 57', 37 \ 9.8077084 



