6 The Ordonance of the Part I.

Chap. II. which is the Half-Diameter $ I here reduce the Module to thethird Part for the same Reason VitruVms had, namely, the Conve-niency of determining thereby, several Measures without a Fraction:for in the Doric Order, besides that the Height of the Base, as inthe other Orders, is determined by one of these mean Modules ;the fame Module gives likewise the Heights of the Capital, Archi-trave, Triglyphs and Metops. But our little Module, taken fromthe Third of the Diameter of the lower Part of the Column, hasUses much more extensive ; for by this, the Heights of Pedestals,of Columns, and of Entablatures, in all the Orders, are deter-mined without a Fraction,

As then, the great Module, which is the Diameter of the Co-lumn, has sixty Minutes, and the mean Module thirty, our littleModule has twenty ; so that the great Module contains three littleones; the mean Module one and a half, two great Modules makesix little ones, two mean ones make three, <&c. as may be seen inthe following Table.

The Table of the Modules.

Great Module. |Min.| Mean Module, jMin.| Little Module. |Min.

I. contains

IL

60

I. contains

II.

120

III.

IV.

3 °

60

90120

IV.

V.

VI.

I. contains

10

I

zo

II.

1_

70

1

40

III.

1.

?o

I

60

70

80

1-7

go

1-7

in.

180

V.

VI.

IJP

180

VII.

VIII.

IX.

H

no

160

17a

180

VII.

210

X.

1-

190

200

IV. ,

240

XI.

I-

210

220

VIII.

240

XII.

I-

270

240 j

V.

300

IX.

X.

270

300

XIII.

XIV.

XV.

260

290

300

What