PRACTICAL ART AT THE PAN-AMERICAN EXPOSITION.
AMONG the interesting things exhibited in the Graphic Arts Building at the Pan-American, is one by Funk & Wagnalls Company displaying the process necessary to produce a lithograph in sixteen colors. The picture that has been selected for this purpose is the colored plate, The Ark of the Law, in the Jewish Cyclopedia. In order properly to show this instructive exhibit, there has been placed a revolving stand on which are eight double frames, each of these frames holding four pictures. In No. 1 is shown the first stone which was engraved for this colored plate. This is the stone which lithographers call “The Base.” No. 2 shows the part of the subject which is to be printed in yellow; turning to No. 3 we find the result of this second stone printed over the first stone. No. 4 again shows the part of the subject which is printed in the next color, namely, medium red; and on No. 5 we have the result of this medium red printing over the preceding colors, and so on, step by step, until we have gone through the sixteen different printings, and finally see the finished picture. Thus the increasing effects of the various printings are clearly illustrated as one proceeds in the examination toward the later stones. This exhibition illustrating the art of lithography was specially prepared for the instruction of the laymen, and the demonstration is so very simple and attractive that the ordinary person, after turning the eight double frames, should have a fairly clear idea of the manner in which lithography is produced.