﻿464 Prof. Ly le and Mr. Baldwin on Propagation of 



Table XXIY. — 12 wires from Specimen D. 

 T = -050. 



c=- 



J463[sin tot -'05 sin 3(wtf + 1-63)]. 



\ sin (cot - Q) +;/; sin 3(W- 9 - itf 3 ) 4/. sin 5(wt- -/3 5 ). 



X. 



A- 



A/A- 



ALA 



6. 



ft. 



ft- 



o x -o \ A r 







681 

 1256 



30-7 

 637 

 2-09 

 092 



•080 



•1534 



•1637 



•1485 



•1210 



•0776 



•0164 

 •0312 

 •0396 

 0312 

 •0259 

 •0172 



15 60 

 30-88 

 3472 

 32-10 

 25-51 

 25-26 



11-35 



4-88 



4-89 



7-61 



10-73 



11-71 



16-24 

 6-61 

 6-92 

 1104 

 16-73 

 25-18 







15-28 



1912 



1650 



991 



966 



•1690 

 •2820 

 •3142 

 •2230 

 •1641 



10 



lf> 



20 



25 



30 





In particular it is most striking that the max. values 

 of \ x , viz.: — 



•3142, -1596, and -0789, 



should be so nearly inversely proportional to the corresponding 

 diameters, 1, 2, and 4 respectively, the corresponding- 

 products being 



•3142, "3192, and *3156 respectively. 



In addition we find with the smaller bundles d^ and d 2 the 

 same change of form of the flux-wave as it passes along them 

 as in the case of specimen D, and also the same peculiarity 

 in the behaviour of the upper harmonics both as regards their 

 amplitudes and phases as has been drawn attention to in the 

 preceding paragraph in relation to the thicker bundle. 



15. The fact that so many of the characteristics of the 

 alternating flux attain either their maximum or minimum 

 values at practically the same point in the specimen (par- 

 ticularly in D, di, and d 2 ) is undoubtedly the most striking- 

 result of this investigation. 



This point might be called the critical point for the speci- 

 men under the conditions of initial flux and frequency used, 

 its distance from the magnetizing solenoid the critical distance, 

 and the values of the different characteristics of the flux there 

 the critical values. For the existence of such a critical point 

 we are unable to offer any expln nation. 



A more fundamental knowledge than any we at present 

 possess of the nature of magnetization and permeability is 

 required. Our want of any exact knowledge of the amplitude 

 and phase relations between induction and magnetizing force 

 and of the relations between the different harmonics of an 



