_Two sorts of beauty in Buildings; 1st, Positive, which consists in the Symmetry, Materials, and Performance_, 75. _2d. Arbitrary, which is of two sorts; 1. Prudence, 2. Regularity; which consist in the proper providing against Inconveniences, and observing the Laws of Proportion_, 76. _The beauty is most seen in the proportion of these principal parts_, viz. _Pillars, Piedments, and Chambrantes_, 78. _From these things result two other, Gender and Order_, 79. Art. 2. _Of the five Genders, or sorts of Fabricks_, 80. _The five sorts are Pycnostyle, Systile_, 80. _Diastyle, Areostyle, Eustyle_, 81. _The Genders to be always agreable to the Orders of Architecture_, 82. Art. 3. _Of the five Orders of Architecture_, 84. _The distinction and difference in the several Orders; consists in the Strength and Ornament_; Vitruvius _speaks but of three Orders_, 85. Art. 4. _Of things that are common to several Orders_, 85. _There are seven things common to all Orders_, viz. _Steps_, 85. _Pedastals_, 86. _the diminution of Pillars, the Channelings of Pillars, which is of three sorts_, 89. _the Piedemont_, 90. _Cornices, and Acroteres_, 93. Art. 5. _Of the_ Tuscane _Order_, 93. _The_ Tuscane _Order consists in the Proportion of Columns, in which there are three parts, the Base, the Shaft, and the Capital_, 94. _Of Chambrantes; and of the Piedement_, 95. Art. 6. _Of the_ Dorick _Order_, 96. _The_ Dorick _Order consists in the proportion; of the Columns, which have been different at diverse times, and in diverse Works_, 96, 97. _The parts of the Column are the Shaft; the Base which it anciently wanted, but hath since borrowed from the Attic; the proportion of the Base_, 97. _and the Captial_, 98. _the Archiatrave, which hath two parts, the Platbands and the Gouttes_, 98. _the Frise, in_ _which are the Triglyphs and the Metops_, 98. _the Proportion of them_, 99. _Of the Cornice, its proportion_, 99. Art. 7. _Of the_ Ionick _Order_, 101. _The preportion of Pillars of this Order_, 101. _The Pillars set upon the Bases two ways, perpendicular, and not so_, 101. _Proportion of the Base, divided into its parts the Plinthus, the Thorus, the Scotia upper and lower, with the Astragals_, 102. _Of the Capital, its proportion and parts_, 103. _Of the Architrave, wherein to be considered, the proportion it must have to the Pedestals, and to the heighth of the Column_, 105. _to the breadth at the bottom_, 106. _and to the jetting of the Cymatium_, 106. _Of the Frise and Cornice_, 107. Art. 8. _Of the_ Corinthian _Order_, 108.