478 FRENCH ARCHITECTURE. Pakt II. important, but they have most of them been rebuilt ; and where this has been the case, even when the outline of the circular form was retained, the lines of the nave were made tangents of the circle, and thus became parts of one design. All these arrangements were perfect 344. St. Sernin, Toulouse. (From Taylor and Notlier.) before the church of Conques (Woodcut No. 340) was erected. There the architect, not being hampered by any previous building, was allowed free scope for his design. The plan so produced was never lost sight of by the French, but was developed into a vast variety of beautiful forms, which we shall shortly have to examine. When once this transformation of the round church into the chevet
