Scope and Contents The documents include a copy of the article; letter from John Morris of University College London, about Barker's work. Morris explains that Barker is a 'man who tests theories about cavalry by riding his own horse..'; two letters from Lieutenant-General Sir John Read of London, about the article and advising Joseph Needham that he has asked various people to write to him with their opinion; letter from Sir William Jackson of the Minstry of Defence to Read advising him that he could not...