Abstract :
When one finds himself sitting in a draft in somebody´s office or in a friend´s home, he does not hesitate to protect himself from this exposure. He may change his seat or may even ask that the draft be reduced or eliminated. This is a privilege which is recognized by both host and visitor and no offense is involved. Why should not the same principle be applied to lighting? How often one finds himself facing a glaring light source. Does he feel as free to mention this annoyance? Even those who recognize the harmful influence of glaring light seldom find it easy to suggest that it be shaded or extinguished. It is felt that the host might be offended, and, doubtless, there is ground for the fear. The effect of exposure to a draft is so easy to trace to its cause that every one recognizes the danger and hosts would not suffer guests to be unnecessarily exposed.