[M.144L]                                                              [M.144]	Traceries. General Plan.  Mouldings	144
                                                                      
[diagram]                                                             		e f is the abacus height & the curves are struck from d
                                                                      		and its correspondent:
                                                                      		It is evident at a glance that this is a curve never used
                                                                      		perhaps intermediate fronts, maybe.  This I must ascertain
                                                                      		if possible.
                                                                      	The general idea of the tracery being that of a variously moulded
                                                                      Mouldings	cross on a square abacus let the cusps and rolls be fixed
                                                                      of 4foil		as a b.  b c d  e f  g h opp. on a square abacus from
                                                                      Traceries	whose edge they are equidistant:  Then there is evidently
                                                                      		every conceivable degree of depth in the cavetto of the intermediate
                                                                      		moulding: as first, d e with the cavetto shallow:
                                                                      		the bend small, and a deep interval between it and
                                                                      		cusp:  This I imagine the earliest form.  2nd g f cavetto
                                                                      		deeper:  and interval smaller.  3rd b c:  deeper cavetto and
                                                                      		interval gone.  This is rare.  4th x h one side of bead work
                                                                      		in cusp a frequent form.
                                                                      		Then observe that in order that the disporportion may not
                                                                      		be so great between the great and smaller roll: in the
                                                                      		form d e; the larger roll is usually a little diminished and the
                                                                      		bead enlarged: while c b is in about true proportion
                                                                      		for c d
                                                                      		Understanding this, we may take as an instance first a small
                                                                      		house near the Teatro Malibran, with an early group of 4foil

[Version 0.05: May 2008]