This article was written in response to the article by Genard (197). It restates with additional information the experiment discussed by Rawlins and Rawson-Bottom (198). The spectral distribution curve was determined for the twelve fluorescent bulbs, in order to demonstrate that the relative energy of the emission lines at 302.2 and 296.7 nm are barely perceptible. Preliminary results were given on an experiment in which three fugitive colors were exposed at equal energies of radiation to five specific wavelengths of radiation, 302.2 and 313.2 nm together, 365 nm, 404.7 nm, 435.8 nm and 546.1 and 578 nm together. The experiment showed that the shorter wavelengths of UV are necessarily the most potent in producing fading. The two areas of fading primarily studied in the past were the band between 340 and 400 nm, the absorption maximum for most dyes, or the band around 250 nm which has enough energy to generate photolysis of organic molecules. It is not clear which class of deterioration the 290-300 nm range of UV discussed by Genard would be classified under, photolysis or photochemical deteriation. In any event, the author argues that the total relative energy contribution of this band by fluorescent bulbs is so low as not to be of immediate concern.