_There are eight parts in Architecture_, viz. 1. _Solidity_, 27. 2. _Convenience_, 3. _Beauty_, 4. _Order_, 5. _Disposition_, 28. 6. _Proportion_, 7. _Decorum_, 8. _Oeconomy_, 32. _Chap._ II. Of the Solidity of Buildings. Art. 1. _Of the choice of Materials_, 33. Vitruvius _speaks of five sorts of Materials_, 1. _Stone_, 33. 2. _Bricks_, 34. 3. _Wood, whereof divers sorts are used, as Oak, Fir, Poplar, Alder_, 35. _Pine, Cypress, Juniper, Cedar, Larch_, 36. _and Olive_; 4. _Lime_; 5. _Sand and Gravel_, 37. _of which several sorts, Pit, River, and Pozzalane_, 38. Art. 2. _Of the use of Materials_, 39. _Of the Preparation of Stone_, 39. _Of Wood_, 40. _Of Bricks_, 41. _Lime and Sand_, 43. Art. 3. _Of the Foundation_, 45. _In Foundations, to take care that the Earth be solid_, 45. _Of the Masonry_, 46. Art. 4. _Of the Walls_, 47. _Six sorts of Masonry_, 48, 49. _Precautions to be used in binding the Walls, to strengthen them with Wood_, 50. _That they be exact perpendicular_, 51. _to ease them of their own weight, by Timber or Arches over doors and windows, and by Butresses in the earth_, 53. Art. 5. _Of Flooring and Ceiling_, 54. _Of Flooring upon the Ground_, 54. _between Stories_, 55. _Open to the Air as Terrass, &c._ 57. _the Roof_, 58. _Cornice_, 59. Art. 6. _Of Plaistering_, 59. _For great Walls, For Fresco_, 60. _for Partitions_, 61. _For moist places_, 61. _Chap. III._ Of the Convenience of Fabricks. Art. 1. _Of convenient Scituation_, 63. _That a place be convenient, it ought to be fertile, accessible, in a wholsom Air, not on low Ground or marshy_, 64. _How to know a wholsom Climate_, 65. Art. 2. _Of the Form and Scituation of the Building_, 65. _The Streets and Houses of a City to be the most advantagiously expos'd in respect to the Heavens and Wind_, 65, 66. _The scituation of each Room to be according to the use of it; of Dining-rooms, Libraries, Closets, &c._ 67, 68. Art. 3. _Of the Dispositions of Fabricks_, 68. _The Dispositions of Buildings to be according to the use of the House, either publick or private; of Merchants Houses; of Country Houses; Of the several Apartments_, 70. _Of Lights_, 71. Art. 4. _Of the convenient form of Buildings_, 71. _Of the Walls of Cities; Form of publick places_, 72. _which were different among the_ Greeks _and_ Romans; _of Stairs and Halls_, 72. _Chap. IV._ Of the Beauty of Buildings. Art. 1. _In what the beauty of Buildings consists_, 74.