Universitätsbibliothek HeidelbergUniversitätsbibliothek Heidelberg
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Pennethorne, John; Robinson, John [Ill.]
The geometry and optics of ancient architecture: illustrated by examples from Thebes, Athens, and Rome — London [u.a.], 1878

DOI Page / Citation link:
https://doi.org/10.11588/diglit.4423#0015

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CONTENTS.

XI

The Observed Curvature of the Horizontal Lines in the Entabla-
ture of the Inner Court of the Temple of Medinet Haboo

The Observed Difference of Level found to exist in the Four Angles
of the Parthenon ......

The Measured Horizontal Curvature of the Lines in the Upper
Step and in the Architrave of the Parthenon, and of the Temple
of Theseus .......

The Character of the Horizontal Curved Lines .

CHAPTER III.—THE CALCULATION OF THE HORIZONTAL CURVED

LINES.......

The Calculated Horizontal Curvature of the Lines in the Upper
Step of the Parthenon and of the Temple of Theseus .

The Calculated Appearance of the Horizontal Lines when Viewed
from the Given Point of Sight 0

The Calculated Concave Appearance of the Horizontal Lines of
the Portico of the Parthenon .....

Conclusion .......

PAGE

84

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100

101
105

PAET IV.

THE COLUMNS.

CHAPTER I.—THE ORIGIN AND PROPORTION OF THE COLUMNS . Ill

The Origin and Proportion of the Egyptian Columns . .111

The Proportions of the Greek Columns . . . .116

CHAPTER IL—THE ANCIENT APPLICATION OF THE CONIC SEC-
TIONS TO THE DESIGNING OF WORKS OF ART . 119

CHAPTER III.—THE CAPITALS...... 127

The Proportions and Curves of the Doric Capitals . . 128

The Ionic Capitals ...... 132

The General Method of Proportioning the Volutes of the Ionic

Capitals ....... 134

The Method of Describing the Spiral Lines of the Ionic Volutes . 139
The Volute of the Capital of the Ionic Column in the Vestibule of

the Propylsea ....... 141

The Volute of the Capital of the Ionic Column of the North Portico

of the Erechtheium ...... 142
 
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