Scope and Contents Chiefly ms text of lectures given, as follows:'Causes and consequences of disorder in strongly bonded structures', for the Institute of Physics and The Physical Society X-Ray Analysis Group autumn conference, London November 1961:Space Group 'Talk about structure of anorthite', November 1962;'Felspars', first draft for Pennsylvania State University 1962;'Anorthite', no date;'Oslo - Spoken' [1963];'Causes and consequences of disorder in strongly bonded structures',...