Brown — The Change of Length in Nickel Wires. 



43 



Table II. 

 Eigidity = 810 x 10 6 grammes per sq. cm. 

 Load = 0-5 x 10 5 



J) J) J) 



Table III. 

 Eigidity = 810 x 10 s grammes per sq. cm. 

 Load = 2 x 10 5 



:j >> J) 



In this last Table the values corresponding to n=50 are omitted because 



g2 



