Digitised by Google Books from the collection at the University of Chicago https://books.google.com/books?id=KmI9AQAAMAAJBlue Books were prepared regularly, generally each year, by Colonial Governments and sent to the Colonial Office, part of the British Government, in London. Original Blue Books may be found in the collection of the National Archives, Kew, England in the Colonial Office CO records, generally classified as  Miscellanea, see  https://discovery.nationalarchives.gov.uk/browse/r/h/C437  “Division within CO”.