PRINTING AND MAKING OF BOOKS 



full length, the operator strikes a lever at the right of the 

 keyboard, and begins the composition of the second line, 

 while at the same time the machine automatically justi- 

 fies the first line, carries it to the casting-pot, delivers 

 it upon the galley, and returns the matrices and spacers 

 to their respective receptacles in the magazine. The 

 machine will not cast a line that has not been properly 

 justified" that is, the lines made even in every way. 



THE LANSTON MONOTYPE MACHINE 



'The Lanston monotype machine was invented by 

 Tolbert Lanston, in 1886, but was not placed on the 

 market until more than ten years later. The principle 

 upon which it is constructed differs radically from that of 

 the linotype. The monotype produces single types cast 

 in the order of their use, and set in automatically justi- 

 fied lines. It consists of two machines a perforating 

 device operated by a keyboard, and a casting machine. 

 The keyboard differs from that of a typewriter only in 

 the much greater number of characters, of which there 

 are two hundred and twenty-five, comprising a complete 

 font, including italics and small capitals. The keys 

 are arranged in fifteen columns of fifteen rows each, 

 with two extra rows at the top to secure justification. 

 For each series of characters in the font a different color 

 is used, so as to distinguish italic from roman fonts, etc. 

 The keyboard is between three and four feet from 

 the floor and is supported by an iron bar upon a base 

 one foot square. At the top of the machine is a roll 

 of paper which unwinds from one spool and winds on 



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