Lighting research problems

The Illuminating Engineering Society Committee on Research has published a list of fifty lighting research problems suitable for investigation by Engineers or Engineering students and seventeen problems for Scientists or Science students. The list appears in the Transactions of the I. E. S., February 1927, pp. 190–194.¹ The Committee points out that work has been done on all the subjects listed. In many cases the work is satisfactory so far as it goes, but the problems are so ramified and far reaching that valuable contributions may still be made.