ALGEBRAIC FORMULA. 291 



2. Calculation of the logarithms of fin 2^', fin4<p^', &c. 



Logarithms. 



finip - - - 1.9729858 



e - - 1.8494850 



fin 8^' = fin 53 1 % 54'. 30^. - 1.1484768 



the 



