Brown, C. R. (1943). A 'universal' apparatus for research in physiological optics. Journal of Experimental Psychology, 33(4), 340-349.
http://dx.doi.org/10.1037/h0058911
An apparatus is described and sketched which is suitable as an aid to the investigation of a large number of visual problems. (PsycINFO Database Record (c) 2016 APA, all rights reserved)