How to Study Architecture

by Charles H. Caffin

The distinction of the Hellenic use of all these mouldings and enrichments was the extreme delicacy of the cutting, which the hardness of the marble permitted and the clear sunshine helped to reveal; so that it has been said that “while the Hellenes built like Titans, they finished like jewellers.” But this did not involve a finicking precision, for it was but an instance of the feeling for proportion and choice relation of parts to one another that embraced the whole building.

Organic Relations.—The height of the building was thoughtfully proportioned to the length and width; the height of the shaft of the column was considered in relation to the diameter. Similar care was expended on the proportions of the several members of the capitals and entablature, and the intercolumniation bore relation to the lower diameter of the shafts. In every particular, great or little, the effort was to create a unified impression of organic harmony and rhythmical relations.

Now the term organic is primarily used of the living bodies of animals and plants, the parts of which are not only connected but perform certain functions in relation to the well-being of the whole. And it is an extension of this idea that the Hellenes applied to the geometrical harmony on which their architecture was based. They considered the functions of each part—the amount of support it gave or strain it had to sustain and so forth; and having made provision for this as constructors, they were consistent to the principle also in their æsthetic consideration as artists. They modified the sculptural decoration according to the function of the parts; giving least to those whose function of support was most important and increasing the quantity and the boldness of the curving as the structural strain diminished.

Thus the shaft of the column was free of any carving except the fluting, which, however, served the purpose of channels to carry the rain water and helped to preserve the mass from decay. The capital in the Doric style was not enriched with ornament, and similarly plain, with very few exceptions, was the architrave. Meanwhile, sculptured figures in high relief were introduced into the metopes which originally had been openings, while the tympanum or flat surface of the pediment received groups of figures in the round. This increased boldness of relief, accompanied by foreshortening of the figures, was adopted to offset the diminishing effect that their greater distance from the spectator’s eye would otherwise have suggested. Moreover, in the sculptures, as in the carving of the mouldings, the varying quantities of light were considered. The mouldings on the outside of a temple in full sunlight were differently planned from those in the interior; and the shadow cast by the cornices was taken into account in graduating the relief of the sculptures in the metopes and pediments.

Nor was the actual work done by artists, but under their supervision by pupils and masons. From the records of payments made to the sculptors who worked on the Erechtheion it appears that they were ordinary masons, some of them not even citizens, who were paid for each figure the sum of 60 drachms, or 12 dollars!

Finally, the decoration of a Greek Temple comprised not only sculpture, but also painting. A large part of every Doric temple was covered with strong, bright colours, while certain prominent details were treated with elaborate patterns. The figures of the sculpture also were painted and relieved against a background of contrasted colour.

It has been discovered that the triglyphs were painted blue and the metopes red and that the mouldings were decorated with ornament in red, blue, green, and gold. The walls and the columns were probably stained yellow or buff, perhaps by the use of wax melted on the surface (encaustic).

Asymmetries or Refinements.—It might seem that, in the various particulars we have noted, Hellenic intellect and feeling had exhausted the possibilities of refinement. But there is yet another instance, which was first revealed by the detailed measurements of Hellenic temples made independently by two Englishmen, Francis Cranmer Penrose and John Pennethorne, and by a German architect, Joseph Hoffer. The results were published in 1838 and in 1851, and have been corroborated by other students. They are known as architectural “refinements” or “asymmetries.”

It had been assumed that, since the form of the temple type was apparently symmetrical, it also involved absolute symmetry of details; that geometrical regularity and mathematical accuracy were the necessary and natural conditions of the architectural design. By those investigators, however, it was discovered that though the principles of geometry and mathematics were the foundation of the planning and designing, regularity and accuracy were purposely avoided; and that so far from the details being symmetrical they exhibit intentional asymmetries.

One of these irregularities is the substitution of curved for straight lines. We have already mentioned the entasis or swell in the vertical contour of the column—a fact not observed by modern architects until 1810; but curvature is also found in the horizontal lines of the stylobate and the architrave, frieze, and cornice, and in the gable lines of the pediments. And since these were discovered other variations of equal importance and significance have been found.