Some Applications of the Electromagnetic Equations to Matter, Supposed to be Constituted of Positive and Negative Electrons

RX q 2 Rx{[f 2 x(R-fq 2 )]xR}But, since we desire to trace back to their origin the different terms, we will write in detail the different parts.The vector in the last term of (20) may be writtenHence, putting the value of E becomes VOL.IX.