Rudiments of ancient architecture, containing an historical account of the five orders, with their proportions, and examples of each from antiques also, extracts from Vitruvius, Pliny, &c. relative to the buildings of the ancients (London, 1810 (4. Aufl.))

68 RUDIMENTS OF

whence to draw rules for the Science of
Architecture.

The columns to the Arseostyle should
have for their thickness one eighth part of
their height. For the Diastyle, the height
of the column is to be divided into eight
parts and a half; one part for the thick-
ness of the column. For the Systyle, the
height shall be divided into nine parts
and a half; one part for the thickness
of the column. Also for the Pycno-
style, the height shall be divided into ten
parts; one part for the thickness of the
column. The Eustyle also is divided into
eight parts and a half, the same as the
Diastyle ; one part is given for the thick-
ness of the column; and for the solidity
of its parts it shall have its proper interco-
lumniation. As the space between the
columns increases, so ought also the thick-
ness of the columns. If it is ara?ostyle,
and they should have only a ninth or tenth
part for their thickness, they will then ap-
pear tall and slender, on account of the
length of the intervals; for the air will in
appearance diminish the thickness of the
columns. On the contrary, if it is pycno-