Chapter I

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).

CHAPTER III.

Concerning the five Orders of Architecture, Rustic, Doric, Ionic, Corinthian, Composite, and also German Work, 65

§ 20. _Rusticated masonry and the Tuscan Order_(65). § 21. _The Doric
Order_ (68). § 22. _A constructive device to avoid charging
architraves_ (72). § 23. _The proportions and parts of the Doric Order_
(75). § 24. _The Ionic Order_ (78). § 25. _The Corinthian Order_ (79).
§ 26. _The Composite Order_ (80). § 27. _Of Terminal figures_ (82). §
28. _German Work (the Gothic Style)_ (83).

CHAPTER IV.

On forming Vaults in Concrete, to be impressed with Enrichment: when the Centerings are to be removed, and how to mix the Plaster, 85

§ 29. _The Construction of enriched Stucco Vaults_ (85). § 30.
_Stucco made with Marble Dust_ (86).

CHAPTER V.

How Rustic Fountains are made with Stalactites and Incrustations from water, and how Cockle Shells and Conglomerations of vitrified stone are built into the Stucco, 87

§ 31. _Grottoes and Fountains of ‘Rocaille’ work_ (87).

CHAPTER VI.

On the manner of making Pavements of Tesselated Work, 91

§ 32. _Mosaic pavements_ (91). § 33. _Pictorial Mosaics for
Walls, etc._ (93).