454 Mr. S. S. Richardson on Magnetic Rotary 



Table III. 

 Mutual induction between unequal circles. 







x/a = 







x/a=0-2. 



P. 



1st 



2nd 



3rd 



M 



P 



1st 



2nd 



3rd 



M 



a 



Term. 



Term. 



Term. 



An VAa 

 0-617 



a 



Term. 



Term. 



Term. 



47r V Aa 



o-oo 



0-426 



0-196 



-0-005 



o-oo 



0406 



0-202 



-0-005 



0-603 



0-60 



0-521 



167 



-0-003 



0-685 



045 



0-453 



0-187 



-0-005 



0-635. 



0-80 



0-649 



0-144 



-0-003 



0-790 



062 



0-501 



0-174 



-0004 



0-671 



092 



0-783 



0-125 



-0002 



0-906 



0-74 



0-548 



0460 



-0-003 



0-705 



0-98 



0937 



0-112 



-0-002 



1-047 



0-84 



0-597 



0-147 



-0003 



0-741 



TOO 



1119 



0-107 



-0-002 



1-224 



093 



640 



0-133 



-0 002 



0-771 ! 



1-41 



0-773 



o-ooo 



-0-003 



0-770 



102 



0-671 



0-118 



-0002 



0-787 



1-73 



0-570 



-0-085 



-0006 



0-479 



115 



0-673 



074 



-0-001 



0-746 



2-00 



0-426 



-0-149 



-0011 



0-266 



1-39 



0-591 



0047 



—0000 



0-638 



2-24 



0-314 



-0-208 



-0016 



0-090 



2-22 



0-220 



-0-129 



+o-ooo 



0091 



2-45 



0-223 



-0-260 



-0-022 



-0-059 



2-69 



0052 



-0-225 



+0-C01 



-0-172 



x/a=0'5. 



x/a = 10. 



000 



0314 



0-232 



-0007 



0539 



o-oo 



0089 



0-330 



-0-015 



0-404 



0-50 



0-342 



0-216 



-0-007 



0-551 



0-65 



0-075 



0-313 



-0-008 



0-380 



071 



0-366 



0-202 



-0 005 



0-563 



0-96 



0-061 



0-297 



-0-003 



0-355 



0-88 



0-382 



0185 



-0003 



0-564 



124 



0-032 



0-280 



-o-ooi 



311 



1-04 



0-385 



0165 



-0-001 



0-549 



1-53 



-0-002 



0'250 



+ 0-010 



0-258 



122 



367 



0-142 



4-0-001 



0-510 



1-94 



-0-091 



0213 



+0-028 



0150 



1-47 



0313 



0-107 



+0-004 



0-424 



2-47 



-0-207 



0-184 



+0-068 



045 



1-86 



0192 



0045 



+0012 



0-249 



! 3-32 



-0-392 



0-133 



+0-200 



-0-059 



2-64 



-0053 



-0-070 



+0 042 



-0-081 













LIV. Magnetic Rotary Dispersion in Relation to the Electron 

 Theory. — Part II. The Number of Electrons and Additive 

 Relations. By S. S. Richardson, B.Sc, A.R.C.Sc, 

 Lecturer in Physics, Central Technical School, Liverpool* . 



ONE o£ the problems arising from the theory of electrons 

 is the determination, from optical data, of the number 

 of resonators present in the molecule of a substance. The 

 subject has been examined by Reiff f, Lorentz }, Drude§, 

 and Erfle || in connexion with the dispersion constants, and 

 by Koenigsberger and Kilchling % with respect to the 



* Communicated bv Prof. L. R. Wilberforce. 

 t Wied. Ann. (5o)"p. 83 (1895). 



t Versl. k. Ah. Wet. Amsterdam (6), pp. 506, 555 (1898). 

 § Ann. d. Phys. (14) pp. 677, 936 (1904). 

 || Ann, d. PJiys. (24) p. 698 (1907). 

 f y Ann. d. Phys. (28) p. 889 (1909) ; (32) p. 843 (1910). 



