
This is Volume 23 of the "Journal of the Franklin Institute," published in 1839. The journal, produced by the Franklin Institute in Philadelphia, Pennsylvania, contains articles, reports, and proceedings related to scientific discoveries, technological innovations, and mechanical...

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...
