512 PROFESSOR CLERK MAXWELL ON THE ELECTROMAGNETIC FIELD. 
least squares to determine what further correction depending on the square of the 
velocity should be applied to make the outstanding errors a minimum. 
The result of this examination showed that the calculated value of L should be 
multiplied by 1-0618 to obtain the value of L, which would give the most consistent 
results. 
We have therefore L by calculation 430165 metres. 
Probable value of L by method of least squares 456748 „ 
Eesult of rough experiment with the Electric Balance (see § 46) 410000 „ 
The value of L calculated from the dimensions of the coil is probably much more 
accurate than either of the other determinations. 
