About three months ago-that is to say, toward the end of May of this year of 1900-the writer whose name appears on the title-page received as noteworthy a letter, and packet of papers, as it has been his lot to examine. They came from a very good friend of mine, whose name there is no reason that I should now conceal-Dr. Arthur Lister Browne, M.A. (Oxon.), F.R.C.P. It happened that for two years I had been spending most of my time in France, and as Browne had a Norfolk practice, I had not seen him during my visits to London.