If any one with a turn for mechanics wants a
fortune let him perfect the etylographic pen. That little machine would kill all existing pens, but for two cardinal imperfections. The ink does not always flow easily, which is vexing, and might, we should think, be corrected by making the month of a crystal instead of a metal, or by more careful internal polish- ing; and the machine every now and then lets out ink over the hand. The latter defect is most annoying, and, as far as we can judge from an extensive experience, incurable without a change of structure. We cannot see, however, why all the air- holes should not slope towards the band, so that no ink would come from them during the act of writing, or why the pen should not be filled from the handle instead of the mouth- piece. There would then be no need for any screw except one in the handle, and the emission of ink while the owner was writing would, from the position of the penholder, become a physical impossibility.
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