Fig. 2. 



THE PRINTING PRESS. 



CHAPTER I. 



1. The improvement of the art not promoted by men of letters and 

 science. 2. General signification of printing. 3. Printing by models 

 in relief. 4. Method of engraving the block. 5. Antiquity of this 

 art. 6. Invention of movable type. 7. Use of movable types for 

 printing successive books or parts of a book. 8. Process of printing. 

 9. Composition. 10. Quadrats. 11. Use of the chase. 12. 

 Imposing. 13. Reading and correcting. 14. Successive operations 

 in printing. 15. Inking. 16. Inking-rollers. 17. Stanhope press. 

 18. Printing-machines. 19. General description of them. 20. 

 Single printing-machines. 21. Double printing-machines. 22. Per- 

 spective view and description of Applegath and Cowper's double 

 printing-machine. 



1. IT is a remarkable fact, that printing, which has so far 

 transcended all other arts in the influence it has exerted in the 

 advancement of knowledge and the progress of the human race, 

 owes almost nothing to the class devoted professionally to letters 

 and the sciences, and on whom it has, nevertheless, bestowed the 

 largest measure of advantage. 



LARDNER'S MUSEUM OF SCIENCE. B 1 



No. 131. 



