Machines of Class 16, described in this book, each have one needle and a central bobbin, oscillating shuffle and make the lock stitch. Machine 16-188 is designed for sewing clol.h or light, or medium weight leather and is used in the manufacture of automobile curtains, waterproof covers, bags, tarpaulins, leather leggins, carriage trimmings, etc.. 'This machine is equipped with upper and under feeding mechanism, each of which can bo adjusted independently. By this means, the upper or lower plies of lalirie can be fed faster or slower as may be desired. Binding, hemming and piping can also be accomplished on the machine, attachments for the various operations being furnished, on order, at an additional charge.