I offer my thanks to several friends who have been kind enough to read the proofs of this book, and to send me corrections and suggestions; among whom I will mention Professors John Adams and J.H. Muirhead, Dr. A. Wolf, and Messrs. W.H. Winch, Sidney Webb, L. Pearsall Smith, and A.E. Zimmern. It is, for their sake, rather more necessary than usual for me to add that some sta...