<p class="noindent">des bewegten Elektrons. Wir schreiben die Gleichungen (A)
<br/>
in der </p>
<center class="par-math-display">
<img src="http://foxridge.mpiwg-berlin.mpg.de/permanent/einstein/annalen/Einst_Zurel_de_1905/fulltext/img/Einst_Zurel_de_1905105x.png" alt=" 2 m b3 d-x- = eX = e X', d t2 d2y ( v ) m b2 ----= eb Y - --N = eY ', d t2 V 2 d2z ( v ) ' m b ---2 = eb Z + --M = eZ d t V " class="par-math-display"/>