[GB.18L]                                                              [GB.18]								18
                                                                      
                                                                        Agnese Venier  [lobe]
[drawing]  a   b   c                                                    4 foiled  rose in centre
                                                                        and shaft abacus
Observe a b, the                                                      not projecting beyond
chord, exactly                                                        moulding on either
 = chord b c                                                          side
                                                                      A Roman vault inside
[drawing]                                                             with a low ridge   [diagram]
                                                                      each angle to a flat
		[Encrinite?] top                                                    rose in centre
		a little larger -                                                   
		real size. to                                                       Note opposite In the triangle filling the lower
		show insertion of                                                   lobe only has the [encrinite?] end: and it only
		stem.                                                               therefore . has a rib: the others incised only
                                                                      as on next page . fig 4. In the ornaments
                                                                       of this period the stem springs from rose. or
                                                                      rose from stem indiscriminately
                                                                      The extraordinary peculiarity of this arch - the
                                                                      lower cusp not springing from base of arch
                                                                      but some distance up. and the reversed ogee
                                                                      delicately - but pointedly opposed to the outer
                                                                      arch line; was all most carefully noted on
                                                                      purpose. the trefoil also accurate
                                                                      The shaft above the abacus does not project but fills up
                                                                      the moulding corner . as in dotted line.
                                                                      Within the niche is a Roman vault with
                                                                      a shallow ridge [diagram] along each
                                                                      angle. meeting in a flat rose.
                                                                      
                                                                      				Done.

[Version 0.05: May 2008]