[BB.63L] [also] 20w                                                   [BB.63]							63
                                                                      
[upside down]                                                         [upside down]
                                                                      
	San Fermo maggiore                                                   [diagram]
                                                                      Stone cornice		-	Section
		p. 121 M. 2                                                         above all-Section		through archivolt
			is right joint                                                     				and cornice above
			the others wrong                                                   
			cusp perfectly plain                                               
                                                                      				-Brick horizontal
[diagram] b	r	r                                                       				-Brick horizontal
	     a	q	c	P2	a2                                                     				-stone
                                                                      				...1 ¾  in. brick band of arch
		a	a2	2 “ 4                                                          
		a	c	2 “ 0 ¼                                                         stone
		a	b	0 “ 3 3/8                                                       (archivolt)
		p	p2	2 “ 1 ¾                                                        				[diagram]	chamfer
		p	q	0 “ 3 7/8                                                       						larger
joc (-) 11 ¾ in ap (-)		1 “0 ¼                                        						¾  in
                                                                      
Cusp exactly coincident above and below                               
                                                                      [diagram]		All the lines of
                                                                      			this arch should
                                                                      			be as sharp and
In other point of the arcade their                                    			precise as the
arches terminate thus:  & are carried on                              			compasses can
			square pils                                                        			draw them
[diagram] Fig 1.	with the bead                                        			The point of
			continuous down                                                    			the brick at
			their  [?]                                                         			b is like the
			Done                                                               			head of a lance
                                                                      
                                                                      Profile of bracket.

[Version 0.05: May 2008]