Along a series of lines running from longer to shorter wavelengths the effect of the electric field becomes greater as the serial numbers increase - that is, as the wavelength decreases.
The movement of the emitters of the spectral lines may be deduced on the basis of the Doppler principle.
In my view the structure of the whole atom was that of an individual, with all its parts interconnected, and the emission of a spectral line appeared to me to be the result of the coherence and co-operation of several electric quanta.
However, cases came to light later in which canal rays containing only positive ions showed a Doppler effect in the spectral lines emitted by them.