INTRODUCTION
9infullmeasure,satisfy
themall. And,intheabsenceofsuch
aprinciple,itisquitearbitrarytopronouncedogmatically on the concessions which art shouldmake
toscience
orutility. Unlessitcanbeprovedthat theseapparentlydifferentvalues arein realitycommensurable, there ought to be three separateschemesofcriticism: thefirstbasedonconstruction,the second on convenience, the third on aesthetics.Each could be rational, complete, and, within itsown province, valid.
Thus by degreesmight
beobtained what at present is certainly lacking—
^thedata foratheory ofarchitecture which should notbecontradicted
atoncebythehistoryoftaste.
Thepresentstudyseekstoexplainonechapterofthat history. It deals with a
limited periodofarchitecture,fromasinglepointofview.Theperiodisonewhichpresentsacertainobvious
unity. ItextendsfromtherevivalofclassicalformsatthehandsofBrunelleschi,inthefifteenthcentury,to
theriseoftheGothicmovement,bywhich, fourhundred years later, they were eclipsed.
The old
medisevalism, andthe new, marktheboundaries
ofoursubject. Atnopointinthefourcenturieswhichinterveneddoesany
lineofcleavageoccurasdistinctas those whichsever the
historyofarchitectureatthese two points.