Personal correspondence: L (Labarthe - von Laue) Correspondents include: Dr A Labarthe; Dr Leonard Lack; R Ladenburg (Palmer Physical Laboratory, Princeton); CJ Laine; Dr Erich Lange; Dr Rudolf Landsberg; R Lang; I Langmuir; Karl Lark-Horowitz; Margharita Laski; Hugh Last; Dr H de Laszlo; AH Larsen; Dr Hans Laube; AH Larsen; Dr Hans Laube and Max von Laue. Majority of the correspondence is with Prof Max von Laue and runs from 1924-1955. The pre-Second World War correspondence includes letters from von Laue describing Germany under Nazi rule. Correspondence with Labarthe is on 'La France Libre', a periodical devoted to French culture, to be produced by French emigres in the UK during the Second World War. 1924-1956