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The value of the idea is an economical one entirely, as the ground wood employed costs less than any other of the component parts of a print-paper sheet. The cylinder machine, to which reference was made earlier in the chapter, was patented in 1809 by a prominent paper-maker of England, Mr. John Dickinson.
"I don't like this, Mac," said Hal. "What a fool I was to put the press in the most exposed place." "Fortify it." "With what?" "The rolls." Print-paper comes from the pulp-mills in huge cylinders, seven feet long by four in diameter. The highest-powered small arm could not send a bullet through the close-wrapped fabric.
Esparto, a Spanish grass grown in South Africa, has entered largely into the making of print-paper in England. Mixed with rags it makes an excellent product, but the chemicals required to free it from resin and gritty silica are expensive, while the cost of importation has rendered its use in America impractical.
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