“…This group has been fully described by Friedberg and Horn (1939) and others (Klinefelter, 1942;Case, Berglund, and Sarnoff, 1955;Lindo and Doctor, 1955;Bar, Zeilhofer, and Heckel, 1957;Sanghvi et al, 1958), and will not be discussed further here. Sickle cell anaemia also produces these changes (Nelson, 1959).…”