Magnetic Induction in Straight Iron Rods. 489 



does not appear in the equation, but it will be observed that 

 the denominator of the first term takes this into account. 



Fig. 4. 



6000 



4000 



2000 



2 3 4 5 



Distance from Centre of Specimen. 



In figs. 4, 5, and 6 are shown curves of distribution ob- 

 tained by applying equation (9) to specimens No. 5, 2, and 11, 

 for different values of B max. The distribution for the re- 

 spective values of B max. is indicated by the points in the 

 same figs. 



