Such are the main features of a Doric temple (those last mentioned not being peculiar to the Doric style). Little has been said thus far of variation in these features. Yet variation there was. Not to dwell on local differences, as between Greece proper and the Greek colonies in Sicily, there was a development constantly going on, changing the forms of details and the relative proportions of parts and even introducing new features originally foreign to the style. Thus the column grows slenderer from century to century. In early examples it is from four to five lower diameters in height in the best period (fifth and fourth centuries) about five and one half, in the post classical period, six to seven. The difference in this respect between early and late examples may be seen by comparing the sixth century Temple of Posidon (?) at Paestum in southern Italy (Fig. 57) with the third (?) century Temple of Zeus at Nemea (Fig. 58). Again, the echinus of the capital is in the early period widely flaring, making in some very early examples an angle at the start of not more than fifteen or twenty degrees with the horizontal (Fig. 59); in the best period it rises more steeply, starting at an angle of about fifty degrees with the horizontal and having a profile which closely approaches a straight line, until it curves inward under the abacus (Fig. 51); in the post-classical period it is low and sometimes quite conical (Fig. 60). In general, the degeneracy of post-classical Greek architecture is in nothing more marked than in the loss of those subtle curves which characterize the best Greek work. Other differences must be learned from more extended treatises.

The Ionic order was of a much more luxuriant character than the Doric. Our typical example (Fig. 61) is taken from the Temple of Priene in Asia Minor—a temple erected about 340-30 B. C. The column has a base consisting of a plain square PLINTH, two TROCHILI with moldings, and a TORUS fluted horizontally. The Ionic shaft is much slenderer than the Doric, the height of the column (including base and capital) being in different examples from eight to ten times the lower diameter of the shaft. The diminution of the shaft is naturally less than in the Doric, and the entasis, where any has been detected, is exceedingly slight. The flutes, twenty-four in number, are deeper than in the Doric shaft, being in fact nearly or quite semicircular, and they are separated from one another by flat bands or fillets. For the form of the capital it will be better to refer to Fig. 62, taken from an Attic building of the latter half of the fifth century. The principal parts are an OVOLO and a SPIRAL ROLL (the latter name not in general use). The ovolo has a convex profile, and is sometimes called a quarter-round; it is enriched with an EGG-AND-DART ornament The spiral roll may be conceived as a long cushion, whose ends are rolled under to form the VOLUTES. The part connecting the volutes is slightly hollowed, and the channel thus formed is continued into the volutes. As seen from the side (Fig. 63), the end of the spiral roll is called a BOLSTER; it has the appearance of being drawn together by a number of encircling bands. On the front, the angles formed by the spiral roll are filled by a conventionalized floral ornament (the so-called PALMETTE). Above the spiral roll is a low abacus, oblong or square in plan. In Fig. 62 the profile of the abacus is an ovolo on which the egg-and-dart ornament was painted (cf. Fig. 66, where the ornament is sculptured). In Fig. 61, as in Fig. 71, the profile is a complex curve called a CYMA REVERSA, convex above and concave below, enriched with a sculptured LEAF-AND-DART ornament. [Footnote: The egg-and-dart is found only on the ovolo, the leaf-and-dart only on the cyma reversa or the cyma recta (concave above and convex below) Both ornaments are in origin leaf-patterns one row of leaves showing their points behind another row.] Finally, attention may be called to the ASTRAGAL or PEARL-BEADING just under the ovolo in Figs. 61, 71. This might be described as a string of beads and buttons, two buttons alternating with a single bead.

In the normal Ionic capital the opposite faces are of identical appearance. If this were the case with the capital at the corner of a building, the result would be that on the side of the building all the capitals would present their bolsters instead of their volutes to the spectator. The only way to prevent this was to distort the corner capital into the form shown by Fig. 64; cf. also Figs. 61 and 70.

The Ionic architrave is divided horizontally into three (or sometimes two) bands, each of the upper ones projecting slightly over the one below it. It is crowned by a sort of cornice enriched with moldings. The frieze is not divided like the Doric frieze, but presents an uninterrupted surface. It may be either plain or covered with relief-sculpture. It is finished off with moldings along the upper edge. The cornice (cf. Fig. 65) consists of two principal parts. First comes a projecting block, into whose face rectangular cuttings have been made at short intervals, thus leaving a succession of cogs or DENTELS; above these are moldings. Secondly there is a much more widely projecting block, the CORONA, whose under surface is hollowed to lighten the weight and whose face is capped with moldings. The raking cornice is like the horizontal cornice except that it has no dentels. The sima or gutter-facing, whose profile is here a cyma recta (concave above and convex below), is enriched with sculptured floral ornament.

In the Ionic buildings of Attica the base of the column consists of two tori separated by a trochilus. The proportions of these parts vary considerably. The base in Fig. 66 (from a building finished about 408 B.C.) is worthy of attentive examination by reason of its harmonious proportions. In the Roman form of this base, too often imitated nowadays, the trochilus has too small a diameter. The Attic-Ionic cornice never has dentels, unless the cornice of the Caryatid portico of the Erechtheum ought to be reckoned as an instance (Fig. 67).

The capital shown in Fig. 66 is a special variety of the Ionic capital, of rather rare occurrence. Its distinguishing features are the insertion between ovolo and spiral roll of a torus ornamented with a braided pattern, called a GUILLOCHE; the absence of the palmettes from the corners formed by the spiral roll; and the fact that the channel of the roll is double instead of single, which gives a more elaborate character to that member. Finally, in the Erechtheum the upper part or necking of the shaft is enriched with an exquisitely wrought band of floral ornament, the so-called honeysuckle pattern. This feature is met with in some other examples.

As in the Doric style, so in the Ionic, the anta-capital is quite unlike the column-capital. Fig. 68 shows an anta-capital from the Erechtheum, with an adjacent portion of the wall-band; cf. also Fig. 69. Perhaps it is inaccurate in this case to speak of an anta-capital at all, seeing that the anta simply shares the moldings which crown the wall. The floral frieze under the moldings is, however, somewhat more elaborate on the anta than on the adjacent wall. The Ionic method of ceiling a peristyle or portico may be partly seen in Fig 69. The principal ceiling-beams here rest upon the architrave, instead of upon the frieze, as in a Doric building (cf. Fig. 56). Above were the usual coffered slabs. The same illustration shows a well-preserved and finely proportioned doorway, but unfortunately leaves the details of its ornamentation indistinct.

The Ionic order was much used in the Greek cities of Asia Minor for peripteral temples. The most considerable remains of such buildings, at Ephesus, Priene, etc., belong to the fourth century or later. In Greece proper there is no known instance of a peripteral Ionic temple, but the order was sometimes used for small prostyle and amphiprostyle buildings, such as the Temple of Wingless Victory in Athens (Fig. 70). Furthermore, Ionic columns were sometimes employed in the interior of Doric temples, as at Bassae in Arcadia and (probably) in the temple built by Scopas at Tegea. In the Propylaea or gateway of the Athenian Acropolis we even find the Doric and Ionic orders juxtaposed, the exterior architecture being Doric and the interior Ionic, with no wall to separate them. One more interesting occurrence of the Ionic order in Greece proper may be mentioned, viz., in the Philippeum at Olympia (about 336 B.C.). This is a circular building, surrounded by an Ionic colonnade. Still other types of building afforded opportunity enough for the employment of this style.

After what has been said of the gradual changes in the Doric order, it will be understood that the Ionic order was not the same in the sixth century as in the fifth, nor in the fifth the same as in the third. The most striking change concerns the spiral roll of the capital. In the good period the portion of this member which connects the volutes is bounded below by a depressed curve, graceful and vigorous. With the gradual degradation of taste this curve tended to become a straight line, the result being the unlovely, mechanical form shown in Fig. 71 (from a building of Ptolemy Philadelphus, who reigned from 283 to 246 B.C.). Better formed capitals than this continued for some time to be made in Greek lands; but the type just shown, or rather something resembling it in the disagreeable feature noted, became canonical with Roman architects.

The Corinthian order, as it is commonly called, hardly deserves to be called a distinct order. Its only peculiar feature is the capital; otherwise it agrees with the Ionic order. The Corinthian capital is said to have been invented in the fifth century; and a solitary specimen, of a meager and rudimentary type, found in 1812 in the Temple of Apollo at Bassae, but since lost, was perhaps an original part of that building (about 430 B. C). At present the earliest extant specimens are from the interior of a round building of the fourth century near Epidaurus in Argolis (Fig. 72). [Footnote: For some reason or other the particular capital shown in our illustration was not used in the building, but it is of the same model as those actually used, except that the edge of the abacus is not finished.] It was from such a form as this that the luxuriant type of Corinthian capital so much in favor with Roman architects and their public was derived. On the other hand, the form shown in Fig. 73, from a little building erected in 334 B.C. or soon after, is a variant which seems to have left no lineal successors. In its usual form the Corinthian capital has a cylindrical core, which expands slightly toward the top so as to become bell-shaped; around the lower part of this core are two rows of conventionalized acanthus leaves, eight in each row; from these rise eight principal stalks (each, in fully developed examples, wrapped about its base with an acanthus leaf) which combine, two and two, to form four volutes (HELICES), one under each corner of the abacus, while smaller stalks, branching from the first, cover the rest of the upper part of the core; there is commonly a floral ornament on the middle of each face at the top; finally the abacus has, in plan, the form of a square whose sides have been hollowed out and whose corners have been truncated. In the form shown in Fig. 73 we find, first, a row of sixteen simple leaves, like those of a reed, with the points of a second row showing between them; then a single row of eight acanthus leaves; then the scroll-work, supporting a palmette on each side; and finally an abacus whose profile is made up of a trochilus and an ovolo. This capital, though extremely elegant, is open to the charge of appearing weak at its middle. There is a much less ornate variety, also reckoned as Corinthian, which has no scroll- work, but only a row of acanthus leaves with a row of reed leaves above them around a bell-shaped core, the whole surmounted by a square abacus. In the Choragic Monument of Lysicrates the cornice has dentels, and this was always the case, so far as we know, where the Corinthian capital was used. In Corinthian buildings the anta, where met with, has a capital like that of the column. But there is very little material to generalize from until we descend to Roman times.