LENZ ON ELECTRO-MAGNETISM. 



615 



If we now apply the method of the least squares to this tabJe, as we 

 did to the first, we obtain 



^ = 3°-97 and log. sin. | = 8-53944 

 and with this value we obtain from formula (B.) the following devia- 

 tions : 



In this place also the calculation coincides well with the observation ; 

 as I expected however to attain this coincidence still more completely, 

 if I allowed the length of the conductors to remain the same for all the 

 experiments, I made a second series of experiments similar to the 

 above with another multiplier, where X, \', &c., remained always equal 

 to one another ; this series has also been performed with more care 

 than the others above-mentioned, since each of the numbers contained 

 in the following table is the mean deduced from three observations, in 

 which mean however I retained only one decimal place. The columns 

 designated by 1, 2, 3, 4 are intended for the same purpose as the four 

 columns in the former tables. 



