This page needs to be proofread.
138
GOTHIC ARCHITECTURE
CHAP.
(a, in A, Fig. 77) that have no functional office. With this exception they consist, respectively, of a central column surrounded by detached monolithic shafts, each one sustaining
![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/ae/Fig_77_-Piers_at_crossing_of_Lincoln_and_Canterbury_resply.png/300px-Fig_77_-Piers_at_crossing_of_Lincoln_and_Canterbury_resply.png)
FIG. 77.
a rib of the vaulting. These shafts are in two superposed orders—the first having their capitals at the springing of the ground-story arches, and the second having bases which