EVOLUTION. 167 



Here It appears tKat the fifth root is between 7*3 and 

 7*4. 7*3 being taken, its fifth power is 20730*71593. 

 Hence then 



21035-8 rr given number. 

 20730*716 = assumed power. 



4 



2. What is the third root of 2 ? Ans. 1-25992 1. 



3. What is the sixth root of 21035*8 ? 



Ans. 5'254037. 



4. What is the seventh root of 21035*8 ? 



Ans. 4'M5392' 



c 



What 



