## The Encyclopedia of Architecture, Historical, Theoretical, and Practical |

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Page 283

If two right lines LM , FG be drawn , in these two

AB , these will form four angles at the ... will describe in the revolution a surface

which will be neither concave nor convex , but

If two right lines LM , FG be drawn , in these two

**planes**, perpendicular to the lineAB , these will form four angles at the ... will describe in the revolution a surface

which will be neither concave nor convex , but

**plane**: and the line AB will be ...Page 284

make right angles with the lines AC , AD , it will be perpendicular to the

which passes through these lines . If the line AB were not perpendicular to the

FDCG , another

AB ...

make right angles with the lines AC , AD , it will be perpendicular to the

**plane**which passes through these lines . If the line AB were not perpendicular to the

FDCG , another

**plane**might be made to pass through the point A , to which theAB ...

Page 312

Let P be the point of concourse of the three

the point of concourse of the three

Let P be the point of concourse of the three

**planes**QVN , KML , AHI , and let H bethe point of concourse of the three

**planes**QVN , KML , AHI ; then , because the**planes**VRX and ADI are parallel , and the**plane**VQN is perpendicular to the ...### What people are saying - Write a review

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### Contents

BOOK I | 1 |

PAGE | 11 |

Arcades above Arcades 13 Basements and Attics | 13 |

Copyright | |

68 other sections not shown

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### Common terms and phrases

angle appears arch architect architecture base beam becomes bricks building built called cast cathedral centre century church circle colour columns common considered construction contains course covered curve depth describe diameter direction divided draw edifices effect employed equal erected examples experiments extremely face feet force four front give given greater half height horizontal houses inches iron Italy joints length less lime material means mouldings nearly necessary observed obtained original ornaments parallel period perpendicular piece placed plane plates portion practice principal produced Prop proportion quarries radius remains respect Roman roof round says side similar solid square stone strength style supposed surface temple thickness timber tower triangle upper vault vertical walls whereof whole wood