Page:Charles Moore--Development and Character of Gothic Architecture.djvu/101

Rh struction, intermediate piers had to be introduced, and the whole design to be largely remodelled.

FIG. 40

Minor differences of adjustment in the internal vaulting systems of the French churches of this time are no less frequent than in those of the earlier times; but the general principles which govern them are everywhere the same; and, as we have now considered the main types of construction, we need not investigate them further, but may pass to the consideration of the forms of external support which complete the anatomy of the Gothic structure.

One of the earliest remaining examples of a Gothic buttress system is that of the Church of St. Martin of Laon