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354   Art of Travel.

hand, but to keep a bit of loose paper between it and the map as lie draws. As soon as it is finished, the map is taken to a lithographer, who puts it face downwards on a stone, and passes it under his press, when every particle of ink leaves the surface of the paper and attaches itself to the surface of the stone, precisely as though it had originally been written there ; the glaze on the paper, which prevents the ink from soaking into it, makes this transference more easy and complete. The stone can now be worked with, just as a stone that has been regularly lithographed_ in the usual manner ; that is to say, printing ink may be rubbed over it and impressions may be taken off in any number. It will be observed that the writing on the paper is reversed upon the stone, and is re-reversed, or set right again, in the impressions that are taken from it. The lithographer's charges for furnishing autographic ink and paper, working the stone, striking off fifty copies of a folio size, and supplying the paper (common white paper) for the copies-in fact every expense includedneed not exceed ten shillings, and may be much less. If before drawing his map the traveller were to go to some working lithographer and witness the process, and make two or three experiments in a small way, he would naturally succeed all the better. A map drawn on a large scale, though without any pretension to artistic skill, with abundance of profile views of prominent landmarks, and copious information upon the routes that were explored, written along their sides, would be of the utmost value to future travellers, and to geographers at home.

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