4 o 



Tables 1 5 {concluded) and 1 6 

 CIRCULAR FUNCTIONS AND FACTORIALS 



TABLE 15 (concluded). — Circular (Trigonometric) Functions 



90°= 1.570 7963 radians. 



TABLE 16. — Logarithmic Factorials 



Logarithms of the products 1.2.3 ». n from 1 to 100. 



See Table 18' for Factorials 1 to 20. 

 See Table 33 for log. T (»+!), values of n between 1 and 2. 



Smithsonian Tables. 



