SINGLE COPIES SIX CENTS. VOL. IX.—NO, 20. i $3 PER ANNUM—IN ADVANCE. (NEW SERIE3.) without requiring additional mechanical power to nomical side of the question on the part of those who Improved Quartz Mill. move them ; thus converting one of the most simple The following descriptive and diecursive…
Internet Archive · Public domain (published before 1931). Free to use for anything.
