Imposition of Sheets.—

The same sheet may often be folded and imposed in many ways. A correspondent of the Printers' Register justly complains that the traditional schemes involve the unnecessary turning over of the sheet—sometimes more than once—by the folder. He states that he has in preparation a series of new impositions for fast folding. In our own office, we long since abandoned the ordinary schemes for this very reason. We also find a great advantage in Houghton's plan of bringing the first page to the centre instead of the corner of the form.