v ■'M, 



dk 



1 



Phil. Mag. Ser. 6, Vol. 30. PI. X 



i — I — /t "i ~y 



01 



m 



'L'O rOllVf'lt ilist UlCr- i 



Tia. 3. 

 metres multiply by -207 x 10"", and to convert forces into dynos multiply the figure 

 4-77' x 10- 

 '' 207'xlO" 



thecnrvesby^: 



,,xlO-'" = 5-31xlO- 



