This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.
There has been so much discussion in the medical literature and quasimedical publications, often biased and without scientific foundation, that an authoritative book dealing with the effects of radiant energy on the body is to be welcomed. The vendor of the apparatus for radiant energy may insist, and even the user of various types of lamps may persuade himself, that there is a tremendous amount of virtue in artificial sunlight. There can be no question but that such is the truth; on the other hand, however, carbon arc lamps, ultraviolet lamps, quartz lamps or other types of lamps giving radiant energy are not the cure-alls that many believe them to be. It is therefore important that there be such a book as this which contains within it an unbiased, well balanced, scientific compilation of the use of radiant energy by one who has done a large amount of experimental work