A review is made of the spectra which have been found in the glow discharge with the following substances: (a) benzene, (b) toluene, (c) diphenyl, (d) benzyl chloride, (e) chlorobenzene. When the discharge tube is heated to 200–300°C a spectrum is noticed, designated as “ W-spectrum,” for which the carrier may be C 6H 4 (dehydro benzene). Taking into account other observations on dibenzyl and diphenyl methane, a process is suggested which is designated as “molecular splitting.” As an extension to the assumption previously made that an atom or a radical is split off from the main molecule, the possibility is suggested that atoms, or an atom and radical lying close together, may be split off together, and indeed in such a way that the energy of union of this pair to form a molecule is taken into account in the whole energy process.