18 PRACTICAL MATHEMATICS 



(32) Find the Napierian logarithms of 1-492, 0-01964, and 

 326-1. 



(33) Find the numbers whose Napierian logarithms are 0-1624, 

 2-9214, and -2-0732. 



T 



(34) If <f> = log, - where T = 273 + t, find < when t has the 



27o 



values 50, 100, 150, 200, 250, and 300. 



(35) If I = 3-11 x 10-% log e ^- and u = 300, Z = 0-04. Find r 



r i 

 when T! has the values 0-0115, 0-0120, 0-0125, and 0-0130. 



