“…Published in the middle of the Second World War, at a time when most interest would not have been in predicting drawing accuracy, the study conducted in 1943 describes data collected between 1922 and 1930, a decade or more earlier (and in a footnote, the author “regrets the delay in publication of this report” (p. 41), occasioned in part by a desire to describe further results, of which it is said, “the supplementary studies [will be reported] separately later” (p. 41), although there appears to be no evidence of these later investigations). The article has been cited but five times, once by us (McManus et al, 2010), once in a bibliography, and also by Dörken (1954), Goodenough and Harris (1950), and Munro (1946), none of whom took the study further.…”