is said of this base in Vol. II. Appendix 9.

_II. Doorways and Jambs._

The entrances to St. Mark's consist, as above mentioned, of great
circular or ogee porches; underneath which the real open entrances, in
which the valves of the bronze doors play, are square headed.

[Illustration: Fig. I.]

The mouldings of the jambs of these doors are highly curious, and the
most characteristic are therefore represented in one view. The outsides
of the jambs are lowest.

_a_. Northern lateral door.
_b_. First northern door of the facade.
_c_. Second door of the facade.
_d_. Fourth door of the facade.
_e_. Central door of the facade.

I wish the reader especially to note the arbitrary character of the
curves and incisions; all evidently being drawn by hand, none being
segments of circles, none like another, none influenced by any visible
law. I do not give these mouldings as beautiful; they are, for the most
part, very poor in effect, but they are singularly characteristic of the
free work of the time.

The kind of door to which these mouldings belong, is shown, with the
other groups of doors, in Plate XIV. Vol. II. fig. 6 _a_. Then 6 _b_, 6
_c_, 6 _d_ represent the groups of doors in which the Byzantine
influence remained energetic, admitting slowly the forms of the pointed
Gothic; 7 _a_, with the gable above, is the intermediate group between
the Byzantine and Gothic schools; 7 _b_, 7 _c_, 7 _d_, 7 _e_ are the
advanced guards of the Gothic and Lombardic invasions, representative of
a large number of thirteenth century arcades and doors. Observe that 6
_d_ is shown to be of a late school by its finial, and 6 _e_ of the
latest school by its finial, complete ogee arch (instead of round or
pointed), and abandonment of the lintel.

These examples, with the exception of 6 _a_, which is a general form,
are all actually existing doors; namely:

6 _b._ In the Fondamenta Venier, near St. Maria della Salute.
6 _c._ In the Calle delle Botteri, between the Rialto and San Cassan.
6 _d._ Main door of San Gregorio.
6 _e._ Door of a palace in Rio San Paternian.
7 _a._ Door of a small courtyard near house of Marco Polo.
7 _b._ Arcade in narrow canal, at the side of Casa Barbaro.
7 _c._ At the turn of the canal, close to the Ponte dell' Angelo.
7 _d._ In Rio San Paternian (a ruinous house).
7 _e._ At the turn of the canal on which the Sotto Portico della Stua
opens, near San Zaccaria.

If