249											23
                                                                      
                                                                      	the shaft is massy and excess of capital small (p 22 5 to 8
                                                                      the idea of expansiob or arborescence can hold only in the
                                                                      two cases 7 and 8 and of these since both are vaulting
                                                                      capitals (§   ) only 7 has sympathy with the spread of
                                                                      the arch above, and it is evidently the strongest form
                                                                      for resistance of vertical pressure the capital 8 having
                                                                      the appearance of weakness at the point p;  On the other
                                                                      hand, where the pressure is central in 5 and 6, and the
                                                                      resistance of the capital ed3 depends, not on the contin-
                                                                      uous though it to the shaft of the lines of resistance,
                                                                      but on the colomn of the stem  the thicker that stone
                                                                      the better, the form 5 is near and weak: and 6 alone
                                                                      admiurable Hence of such capitals 6 and 7 are the tru[e]e
                                                                      forms;  Now 7 is evidently a condition of 2a;  and
                                                                      would be very wrong if it were a condition of 2 b as at 9
                                                                      while 6 is also evidently less strong and less graceful
                                                                      where it is a condition of 3a as 1 opp than when it is a
                                                                      condition of 38 (2 opp.)
                                                                      Such being the main conditions of the profile, we must
                                                                      next consider the manner in which the profile is affected
                                                                      by the plan of the abacus and bell:  The former is in
                                                                      its simplest form - square - the latter at its base (in
                                                                      the present case) circular.  And there are evidently two
                                                                      ways of reconsidering the upper and lower forms:  as noted
                                                                      at p 16.  By cutting away gradually, we have the great
                                                                      family of cushion capital;  of which the rudest are for
                                                                      the most part, of the profile a and

[Version 0.05: May 2008]