This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.
To the Editor:
—As Mr. Luckiesh has paid no attention to either our title or our references to recent and reliable sources of information on illumination he does not move us to change any statement we have made.This note gives us the opportunity of correcting a typographic error on page 2 where a reciprocal sign was omitted. There are 1000/1.076 = 929 sq. cm. in a square foot, hence the foot lambert, as stated, equals 1.076 millilamberts.