Working Papers for "On the Continuity of Mental Defect" Consists of : <li>notes from <i>Test for Practical Mental Classification</i> by W Healy and Grace Maxwell Fernald, 1911</li> <li>notes from <i>The Grading of Backward Children: The De Santis Tests and the Binet and Simon Tests of Intellectual Capacity</i> by Henry Herbert Goddard, 1909</li> <li>"Borderland Cases" by A C Rogers, <i>Journal of Psycho-Asthenics</i>, vol 11, p 19</li> <li>lists entitled "attempts at Nosworthy's frequencies"</li> <li>pedigree charts from Bennett's case from <i>Treasury of Human Inheritance</i> Plate 19</li> <li>notes on immunity and attack rate</li> 1913-1914