letters were wood-cut type carved into pictorial wood-cut blocks in explanation of the picture. Its wide use and the ease with which it is cut have made linoleum one of the best known and best liked materials in the reproduction of decorative designs, silhouettes, and the simpler illustrations.

2. In a great many printing plants, linoleum blocks, which are supplanting wood, are cut

for tint blocks, second-color plates, for use in graphs and charts, for indicating

zones or routes on maps, and for all kinds of work ranging from advertising

blotters to letterheads. The block prints best on an antique finish paper, and inks of a heavy body should be used.

GRAPHIC PRESENTATION

MACHINE FINISH PAPER

SCREEN

Photo-Engravrn Board of Trade, New York City.

Halftone Screen Tints.

The purpose of the half cirrles in this illustration and the one on page 417 is to indicate how curves will appear when the various screens are used.

PREPARATION OF ILLUSTRATIONS

SCREEN

SCREEN

MACHINE FINISH PAPER

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A C E

SUPER PAPER

SCREEN

Photo-Eneraver* Board of Trade. New York City.

Halftone Screen Tints.

There were eight halftone screen tints in each of these series, but only every other one is reproduced here. Vz V4 1 Vz 'A 1 % V4

The "1" indicates a full color value.

"'/a" a half screen and "54" *

quarter screen. Those colors that are checked (r )

are the ones used generally in this

book. Because of the possibility of patterns,