figure of a boy resting upon one knee and drawing with a pen upon paper laid on a brass tablet.
The writing consisted in each case of several lines, and, after finishing each line, the figure returned to the beginning of the line to dot and cross the letters.
The hand has two horizontal and one vertical motion; the down strokes of the pen were made relatively thicker by an increase of pressure.
The annexed engraving is a fac-simile of a drawing executed by the automation of M. Droz.
A machine for weighing planchet or coin, automatically sorting the pieces into full and light weight, respectively.
See coin-weighing machine.
An instrument to measure the quantity of moisture.
A barrel-organ, the tunes of which are produced by means of perforated sheets of millboard.
A Swiss ribbon printed by zinc plates which have been produced by the photozinco process from a real lace origina