In the July 1935 issue of the Archives of Ophthalmology1 appeared an article by me entitled "Measurement of Speed of Adjustment of Eye to Near and Far Vision," which dealt with a few tests which I had obtained on the multiple exposure tachistoscope, an apparatus developed by Ferree and Rand, of the Wilmer Ophthalmological Institute of Johns Hopkins Hospital. The article was only a preliminary study and was written to stimulate thought and criticism along that line which would be of value to future work. I realized at the time of writing the article that the tests made were far too few to allow for the drawing of conclusions of any great moment, but I felt entitled to make the statement that more work should be done in order to make a positive or negative report as to the value of such measurements of speed of adjustment