摘要: 1. The present investigation is a sequel to two earlier papers in these 'Proceedings.' In II theory of the electron was proposed which led prediction value constant 2π e 2 / hc . involved an appeal analogies classical dynamics, frequently prove useful though precarious; it has been my purpose substitute more satisfactory geometrical basis. problem this kind, concerned with whole question significance methods quantum theory, unlikely that finality can have reached even at second attempt; but I think progress now sufficient justify publication. According /2π 136. remarked that, as represented number degrees freedom system, small mistakes were unlikely; nevertheless appear made such mistake, and new 137 (16). 136 symmetrical are generalisation rotations translations space; characteristic pair electrons they possess one special degree unlike others no analogue single electron, viz., alteration proper distance between them; whereas relative frame reference employed, odd represents absolute quantity (the interval). mistake not so much overlooking (for there appeared rotation "interchanges identity electrons") recognising its distinctness from others. No relativity transformations play part non-relativity or gauge transformation.