This is a reproduction of a book published before 1923‎.‎ This book may have occasional imperfections such as missing or blurred pages‎,‎ poor pictures‎,‎ errant marks‎,‎ etc‎.‎ that were either part of the original artifact‎,‎ or were introduced by the scanning process‎.‎ We believe this work is culturally important‎,‎ and despite the imperfections‎,‎ have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide‎.‎ We appreciate your understanding of the imperfections in the preservation process‎,‎ and hope you enjoy this valuable book‎.‎