Mackenzie started his autobiography late in life, and announced plans to publish one book a year, each book covering 8 years of his life, until complete. And me made it though 10 volumes. He had an excellent detailed memory and an interesting life (at least until the very end). Unbelievably he wrote other volumes of memoirs as well, including 4 volumes of his adventures in British Intelligence in Athens in the First War, and relating to music (he was a founder of Gramaphone magazine). ( )