(we.ht the circumstances of their study. y*al nomenclature in England underIvji1 a change with the passing of the ntal Health Act, 1959. This not only changed "mental deficiency" into "mental subnormality" and did away with the terms "idiot", "imbecile" and "feeble-minded" (roughly replacing the first two by the severely subnormal and the last by the subnormal), but it "cured" those previously ...