THEORY OF ELECTROMAGNETISM. 
731 
V - 27rSd / K /_1 d' - SH'/x'S'/Stt - SI' 0 H' 
r = 2 7 rSd ,, K // - 1 d" - SH / > // H / 787T - kSI" 0 H" 
x' = - SK'RX/Z, a;" = - SK"R"K72.(4). 
60. Most of Maxwell’s results are collected together in § 619 of his ‘ Electricity 
and Magnetism,’ 2nd edition. In our notation they are 
B' = VV'A' .(A) (5), 
E' 0 = Yp'B’ - dA'/dt -Vz .(B) (6), 
where djdt denotes differentiation with regard to time at a fixed point of space, and 
where 2 is some scalar put for Maxwell’s ML Equation (C) we omit for the present, 
as it requires more detailed discussion than the others. 
B' = H' + 4771 '.(D) ( 7 ). 
4ttC' = VV'H'.(E) (8). 
d' = K'E'o/Itt.(F) (9). 
r = R'-iE'o.(G) ( 10 ). 
Equation (H) we also omit as in this, the present theory certainly gives a result 
different from Maxwell’s. 
B' = n'K .(L) (11), 
“when the magnetisation arises from the magnetic induction,” Maxwell adds. The 
equations omitted are 
Mechanical force due to field = YC'B' — D 'Vz — rdV'H . (C) (12). 
C' = K' + 9d70<.(H) (13). 
D' = - SV'd'*.(J) (14). 
11 = SV1'.(15). 
* The omission of the minus sign in Maxwell’s equation e = SV2> is obviously a misprint. [See 
eqnation (J) § 612.] 
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