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Travelers' Ink

White Blotting Paper is saturated with Aniline Black,
and several sheets are pasted together, so as to form a thick pad. When
required for use a small piece is torn off and covered with a little
water. The black liquid which dissolves out is a good writing ink. A
square inch of paper will produce enough ink to last for a considerable
writing, and a few pads would be all that an exploring party need carry
with them. As water is always available the ink is readily made. This
is a perfectly original and new recipe. Any enterprising man can make a
large income out of its manufacture.

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