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

Part .lOl&te 2

The Fluting op the Shafts of the Greek Columns.

Fig.l. The Parthenon.

( 3 the real/ sisxc.

77i^ fuUsun/j os described rrcrrwdiree centimes,Hhe. depths of tlw
Ftostiruj is increased/ Unr arcls the upper part of the. shaft.
to prodjj-ce. w deeper sliadsw ■

An/Ellipse/ rrurpit/ he trct-ced/ rrZaitieal with the actuals
fhjljtinq but/ iri/ praslcce tile fbutuu) was ilescrxbecb by arcs
ofcircles, as tfve, cuds mru'or arid/ the arcis rrvirwr of the
Ellipse CoaZd/Twb begiverv bust*simply the fwepouvts in,
eaxJv curve/-

Egyptian Shaft. Doric Shaft

16 Sides

20 Flutes

iTptter* dzarnetrrx t

Tig A The Ereclitheium. (nm^Pcrtieo.)

1 the/ real/ size*.,
.The- Fluting of these/ Ionic/ Cclurruxs is
TLlUpttcul the cuds Major- ouruJL the- cutis
-l—^T /■/ , rninrrr bezrea the. gevens auanftfies.

Fig.5 .Monument of Ljsicrates

(th& reads sr/^e-.)

II I

Lowe^ dia7n^rsr->

Ionic Shaft

Fig Z . Tile Propyla'a ( oerdre Portia

(b the/real/ SVKe-)
The fhxtcng of the Cohsurats is olescriberl/
from/ three/ centres iris idee sarrises manner
cos the Columns of tiic Fcirtli en on ■

Fig.3. The Propykea. (Vestibule..)

(i the/ real sv^e. J
'Hie fhrirrug of the Ionfry Columns is elliptical
the arris major' evrul the/ a/as minor berrcg
the. gw.eru gurtn/ities and/ due deptdts of tile
fluting irv proportion/ to the width/ increases
ni/str th& upper diameter.

24 Flutes.

■XM.2M%a+tte<mU»<. ?<{