The general appearance of the interior of a Gothic cathedral, with its long perspective of nave, aisles, and choir, its finely proportioned triforia and clerestories, and, above all, its graceful arches leading up to their points of union in the soaring roof, may justly be called a poem in stone, whilst its exterior is equally remarkable for the close correlation of all its parts, producing an impression of consistent unity of design. An added charm is given alike to the interior and exterior by the combined richness and quaintness of the decorative sculpture, in which is clearly illustrated the delight in symbolism of the mediæval craftsmen, who, working in close accord with architect and builder, supplemented effigies of heroes and heroines of the faith, royal patrons, &c., with emblematic animals, fruit, flowers, and foliage, welding the most incongruous forms into an elaborate and beautiful scheme of ornamentation.
It was in Northern France that the Gothic style was first developed, and there, as elsewhere, it passed through three phases. The first, characterised by comparative severity of style and simplicity of decoration, prevailing in the 12th and 13th centuries; the second, to which the name of Rayonnant is sometimes given, on account of the ray-like window tracery, in the 14th; and the third, known as the Flamboyant, because of the flame-like tracery and general brightness of the ornamentation, in the 15th century.
A hint of the coming change was, as has already been shown, given in many a Romanesque building, notably, to quote but two cases in point, in the Cathedral of Evreux, and the Church of S. Etienne, Beauvais, but it was in the Cathedral of S. Denis, near Paris, founded in 1140, that the full significance of that change was revealed. It retains, it is true, round-headed arches above some of its windows and a few projecting decorative mouldings, but in other respects it is essentially Gothic, its double aisles foreshadowing those of the later Notre Dame of Paris, which may justly be said to be an epitome of the development of the pointed style in France. Specially dear to the French nation on account of its intimate association with many thrilling episodes of its history, it remains, in spite of all the vicissitudes through which it has passed, so far as its general structure is concerned, very much what it was when first completed in the late 13th century. The noble western façade, with its profuse and ornate ornamentation, and the fine square towers flanking it, each pierced with effective openings and adorned with grotesque gargoyles, contrast with the slender central spire—which, by the way, is modern—tiers of graceful flying buttresses, and the numerous groups of pinnacles, whilst the long line of the great roof ridge brings into relief the comparative intricacy of the design of the rest of the building, especially of the extremities of the transepts with their fairy-like arcading, beautiful sculptures, and grand rose windows.
The most distinctive details of the interior of Notre Dame are the massive piers and symmetrical arches of varying width of the nave, the simple but most effective vaulting of it, the double aisles and the choir; the shortness of the transepts, atoned for by the unusual length of the semicircular apse, with its circlet of chapels; the combination in the clerestory of pointed-headed and rose windows, and, above all, the exquisitely proportioned and spacious triforium, which surmounts the whole of the double aisles and forms a circular gallery with arcaded openings, harmonising alike with those of the nave below and the clerestory above, and a stone vault of pointed intersecting arches springing from slender clustered columns.
Contemporaneous with Notre Dame is Laon Cathedral, the original and characteristic chevet of which was replaced in the early 13th century by a square termination, in imitation it is supposed of some English church, but which otherwise resembles the Cathedral of Paris, especially in its fine western façade and open vaulted triforium. In the Cathedral of Chartres, founded in the 12th century, but practically rebuilt in the 13th after its almost complete destruction by fire, the further progress of the style may be studied, its arches being more stilted and its nave and choir wider than those of its predecessors, whilst its closed-in triforium is significant of the ever increasing height of the roofs, necessitating the strengthening of the walls, a change that was, however, quickly succeeded and, to a great extent, neutralised by the piercing and filling in with glass of the wall behind the arcading. Other characteristics of Chartres Cathedral are the noble sculptures of the west front, that are not only among the finest but the least injured in France, those of the south and north porches that are scarcely inferior, the dignified towers surmounted by beautiful and graceful spires of different but harmonious designs, and the double tier of flying buttresses of the nave. The last named are moreover of unusual construction, each consisting of two parts, the upper strengthened by an arcade with round-headed arches, springing from massive stunted piers, that seem to connect the advanced Gothic of the rest of the building, with the late Romanesque style.
The Cathedral of Rheims is another typical Gothic building with a western façade, the deeply recessed central portal of which is especially fine, resembling those of Notre Dame, Laon, and Chartres; a remarkably effective central tower that rises nearly sixty feet above the high-pitched roof; a well-developed chevet, a walled-in triforium similar to that of Chartres, a noble series of clerestory and several grand rose windows filled with very beautiful stained glass.