THE ACADEMIC
TRADITION
203
design
;
itgivesreliefand
accenttothenewintention,
;
justasthe
commonformofa
poetical
metreenables
thepoettogivefullvalue
tohismodulations. So,in
i
Renaissance
architecture, a thickening of the dia-
'
meterofacolumn,asudden
increaseintheprojection
ofa cornice,each
subtlestchange ofratioand pro-
portion,wassureofitseffect.
Anewaesthetic
pur-
posewhenitisready
forexpressionfirstshowsitself
andgathersforcein athousand suchdeviations, all
tendinginasoledirection.
Wemaymarkthem,
for
instance, in
the early years of the baroque, and
realisehowlarge afactorin theireffect lies inthe
academiccanonwhichtheycontradicted.
And if the inherited conventions of architecture
assistthe articulationofnew style,theyserve also
tokeepkeentheedgeofcriticism. InFlorencethe
adventofanew moulding could be the subjectof
epigrams andsonnets
;
the architect whoventured
it risked a persecution.^ The academic tradition
ensured that the standard
of taste was jealously
guardedandcriticallymaintained.
IV
An academic tradition, allied, as it was
in the
Renaissance,
to
alivingsenseofart,isfruitful
;
but
theacademictheoryisatall
timesbarren.
*
Cf.theexcitement
which,accordingtoMilizia,wasrousedby
Bacciod'Agnolo'streatment
ofthewindowsoftheEartoliniPalace.
ThewrathoftheFlorentines
might,inthiscase,havebeenappeased