CHAPTER I

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Of the different kinds of Stone which are used by Architects for ornamental details, and in Sculpture for Statues; that is, Of Porphyry, Serpentine, Cipollaccio, Breccia, Granites, Paragon or Test-stone, Transparent Marbles, White Marbles and Veined Marbles, Cipollini, Saligni, Campanini, Travertine, Slate, Peperigno, Ischia Stone, Pietra Serena and Pietra Forte, 25

§ 1. _The Author’s object in the Discussion of Architecture_ (25). § 2. _Of the working of hard stones, and first of Porphyry_ (26). § 3. _Of Serpentine_ (35). § 4. _Of Cipollaccio_ (36). § 5. _Of Breccia (‘Mischio,’ Conglomerate)_ (37). § 6. _Of Granite_ (39). § 7. _Of Paragon (Touchstone)_ (42). § 8. _Of Transparent Marbles for filling window openings_ (43). § 9. _Of Statuary Marbles_ (43). § 10. _Of Cipollino Marble_ (49). § 11. _Of White Pisan Marble_ (50). § 12. _Of Travertine_ (51). § 13. _Of Slates_ (54). § 14. _Of Peperino_ (55). § 15. _Of the Stone from Istria_ (56). § 16. _Of Pietra Serena_ (57). § 17. _Of Pietra Forte_ (60). § 18. _Conclusion of Chapter_ (61).

## CHAPTER II .

The Description of squared Ashlar-work (lavoro di quadro) and of carved Ashlar-work (lavoro di quadro intagliato), 63

§ 19. _The work of the Mason_ (63).

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