ABSTRACT
The inventors of printing machinery the idea, and by running the composition as a coat upon wooden cylinders, produced the apparatus so long and unsuccessfully sought for, and without which, machine printing would never have succeeded. Rollers, like most other improvements, have met with considerable opposition ; yet their superiority must certainly be acknowledged by all who have become perfectly acquainted with them. Since the introduction of composition, a great annual expense is saved in skins and wool, and a vast deal of the precious time of the men. Upon the introduction of the balls, it was calculated that the saving to each man was a half a day in a week; and we conceive that still more is saved by the rollers. The great saving of ink is also an object worthy of attention, for as it cannot penetrate the surface of the composition, there can be but little wasted.
