"When the linotype work is completed the printer places the lines of type on a 'galley.' Then the type is covered with ink, a piece of paper is laid on, and a heavy roller passed over it. This impression is called the 'galley proof.' If the linotyper has made any mistakes in spelling or printing, they have to be corrected.
"After the 'galley proofs' are corrected, the dummy--a blank-page book just the size the magazine will be--is made.
"Before us, are all the pictures and reading matter to be used. These are arranged and pasted into the dummy in the order in which they are to be printed. Sometimes a page has a little space left at the bottom, and this must be filled with a neat ornament or a verse. Sometimes an article is too long, and then it must be cut down and made to fit the allotted space.
"Thus, the whole magazine is 'dummied' with pages of cut-up galley proofs and picture proofs, until it looks more like a child's scrap book than a magazine model.
"This dummy goes back to the printer, who picks out the galley-type and measures it off to compare with the pages of the dummy. This done, he places the type in a form the size of the page, places the numeral of the page at the top or bottom, with the name of the magazine at the top--this is known as the 'running head,' as it runs along the top of each page throughout the book.
"The printer next makes a page proof. That is, he makes a proof of each page. These pages are sent into the editorial room again, and are gone over carefully and compared with the galley proofs; if everything is correct each page is 'O.K'd.' If, however, there are errors, note is made of it in the margin on the page proof.
"When all the pages are 'O.K'd.' the page forms are 'locked up' together, sixteen, thirty-two or sixty-four, in one big form, and arranged so that when the sheet of paper is printed and folded, the pages will come in the right order."
So Uncle Ben continued his talk about magazine making. He explained the workings of different kinds of printing presses, how some print directly from the type "made ready" on a flat bed, the paper being fed into the press in flat sheets, and how some of the big presses print from curved plates that fit around a big roller, the paper running into the press continuously from an immense big roll as wide as the press. He told about the wonderful folding and stitching machines, and many other interesting things.