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.