Architecture may be described as building at its best, and when we talk of the architecture of any city or country we mean its best, noblest, or most beautiful buildings; and we imply by the use of the word that these buildings possess merits which entitle them to rank as works of art.
The architecture of the civilized world can be best understood by considering the great buildings of each important nation separately. The features, ornaments, and even forms of ancient buildings differed just as the speech, or at any rate the literature, differed. Each nation wrote in a different language, though the books may have been devoted to the same aims; and precisely in the same way each nation built in a style of its own, even if the buildings may have been similar in the purposes they had to serve. The division of the subject into the architecture of Egypt, Greece, Rome, etc., is therefore the most natural one to follow.
But certain broad groups, rising out of peculiarities of a physical nature, either in the buildings themselves or in the conditions under which they were erected, can hardly fail to be suggested by a general view of the subject. Such, for example, is the fourfold division to which the reader’s attention will now be directed.
All buildings, it will be found, can be classed under one or other of four great divisions, each distinguished by a distinct mode of building, and each also occupying a distinct place in history. The first series embraces the buildings of the Egyptians, the Persians, and the Greeks, and was brought to a pitch of the highest perfection in Greece during the age of Pericles. All the buildings erected in these countries during the many centuries which elapsed from the earliest Egyptian to the latest Greek works, however they may have differed in other respects, agree in this—that the openings, be they doors, or be they spaces between columns, were spanned by beams of wood or lintels of stone. Hence this architecture is called architecture of the beam, or, in more formal language, trabeated architecture. This mode of covering spaces required that in buildings of solid masonry, where stone or marble lintels were employed, the supports should not be very far apart, and this circumstance led to the frequent use of rows of columns. The architecture of this period is accordingly sometimes called columnar, but it has no exclusive claim to the epithet; the column survived long after the exclusive use of the beam had been superseded, and the term columnar must accordingly be shared with buildings forming part of the succeeding series.
The second great group of buildings is that in which the semicircular arch is introduced into construction, and used either together with the beam, or, as mostly happened, instead of the beam, to span the openings. This use of the arch began with the Assyrians, and it reappeared in the works of the early Etruscans. The round-arched series of styles embraces the buildings of the Romans from their earliest beginnings to their decay; it also includes the two great schools of Christian architecture which were founded by the Western and the Eastern Church respectively—namely, the Romanesque, which, originating in Rome, extended itself through Western Europe, and lasted till the time of the Crusades, and the Byzantine, which spread from Constantinople over all the countries in which the Eastern (or Greek) Church flourished, and which continues to our own day.
The third group of buildings is that in which the pointed arch is employed instead of the semicircular arch to span the openings. It began with the rise of Mohammedan architecture in the East, and embraces all the buildings of Western Europe, from the time of the First Crusade to the revival of art in the fifteenth century. This great series of buildings constitutes what is known as pointed, or, more commonly, as gothic architecture.
The fourth group consists of the buildings erected during or since the Renaissance (i. e., revival) period, and is marked by a return to the styles of past ages or distant countries for the architectural features and ornaments of buildings; and by that luxury, complexity, and ostentation which, with other qualities, are well comprehended under the epithet modern. This group of buildings forms what is known as Renaissance architecture, and extends from the epoch of the revival of letters in the fifteenth century to the present day.
The first two of these styles occupy those remote times of pagan civilization which may be conveniently included under the broad term ancient; and the better known work of the Greeks and Romans—the classic nations—and they extend over the time of the establishment of Christianity down to the close of that dreary period not incorrectly termed the dark ages.
It may excite surprise that what appears to be so small a difference as that which exists between a beam, a round arch, or a pointed arch, should be employed in order to distinguish three of the four great divisions. But in reality this is no pedantic or arbitrary grouping. The mode in which spaces or openings are covered lies at the root of most of the essential differences between styles of architecture, and the distinction thus drawn is one of a real, not of a fanciful nature.
Every building when reduced to its elements, as will be done in these papers, may be considered as made up of its (1) floor or plan, (2) walls, (3) roof, (4) openings, (5) columns, and (6) ornaments, and as marked by its distinctive (7) character, and the student must be prepared to find that the openings are by no means the least important of these elements. In fact, the moment the method of covering openings was changed, it would be easy to show, did space permit, that all the other elements, except the ornaments, were directly affected by the change, and the ornaments indirectly; and we thus find such a correspondence between this index feature and the entire structure as renders this primary division a scientific though a very broad one.
A division of buildings into such great series as these can not, however, supersede the more obvious historical and geographicaldivisions. The architecture of every ancient country was partly the growth of the soil,i. e., adapted to the climate of the country, and the materials found there, and partly the outcome of the national character of its inhabitants, and of such influences as race, colonization, commerce, or conquest brought to bear upon them. These influences produced strong distinctions between the work of different peoples, especially before the era of the Roman Empire. Since that period of universal dominion all buildings and styles have been influenced more or less by Roman art. We accordingly find the buildings of the most ancient nations separated from each other by strongly marked lines of demarcation, but those since the era of the empire showing a considerable resemblance to one another. The circumstance that the remains of those buildings only which received the greatest possible attention from their builders have come down to us from any remote antiquity, has perhaps served to accentuate the differences between different styles, for these foremost buildings were not intended to serve the same purpose in all countries. Nothing but tombs and temples have survived in Egypt. Palaces only have been rescued from the decay of Assyrian and Persian cities; and temples, theaters, and places of public assembly are the chief, almost the only remains of architecture in Greece.
A strong contrast between the buildings of different ancient nations rises also from the differing point of view for which they were designed. Thus, in the tombs, and, to a large extent, the temples of the Egyptians, we find structures chiefly planned for internal effect; that is to say, intended to be seen by those admitted to the sacred precincts, but only to a limited extent appealing to the admiration of those outside. The buildings of the Greeks, on the other hand, were chiefly designed to please those who examined them from without; and though no doubt some of them, the theaters especially, were from their very nature planned for interior effect, by far the greatest works which Greek art produced were the exteriors of the temples.
The works of the Romans, and, following them, those of almost all western Christian nations, were designed to unite external and internal effect; but in many cases external was evidently most sought after, and, in the north of Europe, many expedients—such, for example, as towers, high-pitched roofs, and steeples—were introduced into architecture with the express intention of increasing external effect. On the other hand, the eastern styles, both Mohammedan and Christian, especially when practiced in sunny climates, show in many cases a comparative disregard of external effect, and that their architects lavished most of their resources on the interiors of their buildings.
Passing allusions have been made to the influence of climate on architecture; and the student whose attention has been once called to this subject will find many interesting traces of this influence in the designs of buildings erected in various countries. Where the power of the sun is great, flat terraced roofs, which help to keep buildings cool, and thick walls are desirable. Sufficient light is admitted by small windows far apart. Overhanging eaves, or horizontal cornices, are in such a climate the most effective mode of obtaining architectural effect, and accordingly in the styles of all southern peoples these peculiarities appear. The architecture of Egypt, for example, exhibited them markedly. Where the sun is still powerful, but not so extreme, the terraced roof is generally replaced by a sloping roof, steep enough to throw off water, and larger openings are made for light and air; but the horizontal cornice still remains the most appropriate means of gaining effects of light and shade. This description will apply to the architecture of Italy and Greece. When, however, we pass to northern countries, where snow has to be encountered, where light is precious, and where the sun is low in the heavens for the greater part of the day, a complete change takes place. Roofs become much steeper, so as to throw off snow. The horizontal cornice is to a large extent disused, but the buttress, the turret, and other vertical features, from which a level sun will cast shadows, begin to appear; and windows are made numerous and spacious. This description applies to gothic architecture generally—in other words, to the styles which rose in northern Europe.
The influence of materials on architecture is also worth notice. Where granite, which is worked with difficulty, is the material obtainable, architecture has invariably been severe and simple; where soft stone is obtainable, exuberance of ornament makes its appearance, in consequence of the material lending itself readily to the carver’s chisel. Where, on the other hand, marble is abundant and good, refinement is to be met with, for no other building material exists in which very delicate mouldings or very slight or slender projections maybe employed with the certainty that they will be effective. Where stone is scarce, brick buildings, with many arches, roughly constructed cornices and pilasters, and other peculiarities both of structure and ornamentation, make their appearance, as, for example, in Lombardy and North Germany. Where materials of many colors abound, as is the case, for example, in the volcanic districts of France, polychromy is sought as a means of ornamentation. Lastly, where timber is available, and stone and brick are both scarce, the result is an architecture of which both the forms and the ornamentation are entirely dissimilar to those proper to buildings of stone, marble, or brick.
The remains of Egyptian architecture with which we are acquainted indicate four distinct periods of great architectural activity: (1) the period of the fourth dynasty, when the great pyramids were erected (probably 3500 to 3000 B. C.); (2) the period of the twelfth dynasty, to which belong the remains at Beni-Hassan; (3) the period of the eighteenth and nineteenth dynasties, when Thebes was in its glory, which is attested by the ruins of Luxor and Karnak; and (4) the Ptolemaic period, of which there are the remains at Denderah, Edfou, and Philæ. The monuments that remain are almost exclusively tombs and temples. The tombs are, generally speaking, all met with on the east or right bank of the Nile: among them must be classed those grandest and oldest monuments of Egyptian skill, the pyramids, which appear to have been all designed as royal burying-places. A large number of pyramids have been discovered, but those of Gizeh, near Cairo, are the largest and the best known, and also probably the oldest which can be authenticated. The three largest pyramids are those of Cheops, Cephren, and Mycerinus at Gizeh. These monarchs all belonged to the fourth dynasty, and the most probable date to be assigned to them is about 3000 B. C. The pyramid of Cheops is the largest, and is the one familiarly known as the Great Pyramid; it has a square base, the side of which is 760 feet long,[J]a height of 484 feet, and an area of 577,600 square feet. In this pyramid the angle of inclination of the sloping sides to the base is 51° 51′, but in no two pyramids is this angle the same. There can be no doubt that these huge monuments were erected each as the tomb of an individual king, whose efforts were directed toward making it everlasting, and the greatest pains were taken to render the access to the burial chamber extremely hard to discover. This accounts for the vast disproportion between the lavish amount of material used for the pyramid and the smallness of the cavity enclosed in it.
The material employed was limestone cased with syenite (granite from Syene), and the internal passages were lined with granite. The granite of the casing has entirely disappeared, but that employed as linings is still in its place, and so skilfully worked that it would not be possible to introduce even a sheet of paper between the joints.
In the neighborhood of the pyramids are found a large number of tombs which are supposed to be those of private persons.Their form is generally that of amastabaor truncated pyramid with sloping walls, and their construction is evidently copied from a fashion of wooden architecture previously existing. The same idea of making an everlasting habitation for the body prevailed as in the case of the pyramids, and stone was therefore the material employed; but the builders seem to have desired to indulge in a decorative style, and as they were totally unable to originate a legitimate stone architecture, we find carved in stone, rounded beams as lintels, grooved posts, and—most curious of all—roofs that are an almost exact copy of the early timber huts when unsquared baulks of timber were laid across side by side to form a covering.
When we come to the series of remains of the twelfth dynasty at Beni-Hassan, in middle Egypt, we meet with the earliest known examples of that most interesting feature of all subsequent styles—the column. Whether the idea of columnar architecture originated with the necessities of quarrying—square piers being left at intervals to support the superincumbent mass of rock as the quarry was gradually driven in—or whether the earliest stone piers were imitations of brickwork or of timber posts, we shall probably never be able to determine accurately, though the former supposition seems the more likely. We have here monuments of a date fourteen hundred years anterior to the earliest known Greek examples, with splendid columns, both exterior and interior, which no reasonable person can doubt are the prototypes of the Greek doric order.
Egyptian temples can be generally classed under two heads: (1) the large principal temples, and (2) the small subsidiary ones called Typhonia or Mammisi. Both kinds of temple vary little, if at all, in plan from the time of the twelfth dynasty down to the Roman dominion.
The large temples consist almost invariably of an entrance gate flanked on either side by a large mass of masonry, called a pylon, in the shape of a truncated pyramid. The axis of the ground-plan of these pylons is frequently obliquely inclined to the axis of the plan of the temple itself; and indeed one of the most striking features of Egyptian temples is the lack of regularity and symmetry in their construction. The entrance gives access to a large courtyard, generally ornamented with columns: beyond this, and occasionally approached by steps, is another court, smaller than the first, but much more splendidly adorned with columns and colossi; beyond this again, in the finest examples, occurs what is called the hypostyle hall,i. e., a hall with two rows of lofty columns down the center, and at the sides other rows, more or less in number, of lower columns; the object of this arrangement being that the central portion might be lighted by a kind of clerestory above the roof of the side portions. This hypostyle hall stood with its greatest length transverse to the general axis of the temple, so that it was entered from the side. Beyond it were other chambers, all of small size, the innermost being generally the sanctuary, while the others were probably used as residences by the priests. Homer’s hundred-gated Thebes, which was for so long the capital of Egypt, offers at Karnak and Luxor the finest remains of temples; what is left of the former evidently showing that it must have been one of the most magnificent buildings ever erected in any country.
It must not be imagined that this temple of Karnak, together with the series of connected temples is the result of one clearly conceived plan; on the contrary, just as has been frequently the case with our own cathedrals and baronial halls, alterations were made here and additions there by successive kings one after another without much regard to connection or congruity, the only feeling that probably influenced them being that of emulation to excel in size and grandeur the erections of their predecessors, as the largest buildings were almost always of latest date. The original sanctuary, or nucleus of the temple, was built by Usertesen I., the second or third king of the twelfth dynasty.
Extensive remains of temples exist at Luxor, Edfou, and Philæ. It should be noticed that all these large temples have the mastaba form,i. e., the outer walls are not perpendicular on the outside, but slope inward as they rise, thus giving the buildings an air of great solidity.
The Mammisi exhibit quite a different form of temple from those previously described, and are generally found in close proximity to the large temples. They are generally erected on a raised terrace, rectangular in plan and nearly twice as long as it was wide, approached by a flight of steps opposite the entrance; they consist of oblong buildings, usually divided by a wall into two chambers, and surrounded on all sides by a colonnade composed of circular columns or square piers placed at intervals, and the whole is roofed in. A dwarf wall is frequently found between the piers and columns, about half the height of the shaft. These temples differ from the larger ones in having the outer walls perpendicular.
The constructional system pursued by the Egyptians, which consisted in roofing over spaces with large horizontal blocks of stone, led of necessity to a columnar arrangement in the interiors, as it was impossible to cover large areas without frequent upright supports. Hence the column became the chief means of obtaining effect, and the varieties of form which it exhibits are very numerous. The sculptors appear to have imitated as closely as possible the forms of the plant-world around them. In one they represent a bundle of reeds or lotus stalks. The stalks are bound round with several belts, and the capital is formed by the slightly bulging unopened bud of the flower, above which is a small abacus with the architrave resting upon it: the base is nothing but a low circular plinth. The square piers also have frequently a lotus bud carved on them. At the bottom of the shaft is frequently found a decoration imitated from the sheath of leaves from which the plant springs. As a further development of this capital we have the opened lotus flower of a very graceful bell-like shape, ornamented with a similar sheath-like decoration to that at the base of the shaft. This decoration was originally painted only, not sculptured, but at a later period we find these sheaths and buds worked in stone. Even more graceful is the palm capital, which also had its leading lines of decoration painted on it at first, and afterward sculptured. At a later period of the style we find the plant forms abandoned, and capitals were formed of a fantastic combination of the head of Isis with a pylon resting upon it. In one part of the temple at Karnak is found a very curious capital resembling the open lotus flower inverted. The proportion which the height of Egyptian columns bears to their diameter differs so much in various cases that there was evidently no regular standard adhered to, but as a general rule they have a heavy and massive character. The wall-paintings of the Egyptian buildings show many curious forms of columns, but we have no reason for thinking that these fantastic shapes were really executed in stone.
Almost the only sculptured ornaments worked on the exteriors of buildings were the curious astragal or bead at all the angles, and the cornice, which consisted of a very large cavetto, or hollow moulding, surmounted by a fillet. These features are almost invariable from the earliest to the latest period of the style. This cavetto was generally enriched, over the doorways, with an ornament representing a circular boss with a wing at each side of it.
One other feature of Egyptian architecture which was peculiar to it must be mentioned, namely, the obelisk. Obelisks were nearly always erected in pairs in front of the pylons of the temples, and added to the dignity of the entrance. They were invariably monoliths, slightly tapering in outline, carved with the most perfect accuracy; they must have existed originally in very large numbers. Not a few of these have been transported to Europe, and at least twelve are standing in Rome, one is in Paris and one in London.
The early rock-cut tombs were, of course, only capable ofproducing internal effects; their floor presents a series of halls and galleries, varying in size and shape, leading one out of the other, and intended by their contrast or combination to produce architectural effect. To this was added in the latter rock-cut tombs a façade to be seen directly in front. Much the same account can be given of the disposition of the built temples. They possess one front, which the spectator approaches, and they are disposed so as to produce varied and impressive interiors, but not to give rise to external display. The supports, such as walls, columns, piers, are all very massive and very close together, so that the only wide open spaces are courtyards.
The circle, or octagon, or other polygonal forms do not appear in the plans of Egyptian buildings; but though all the lines are straight, there is a good deal of irregularity in spacing, walls which face one another are not always parallel, and angles which appear to be right angles very often are not so.
The later buildings extend over much space. The adjuncts to these buildings, especially the avenues of sphinxes, are planned so as to produce an air of stately grandeur, and in them some degree of external effect is aimed at.
The walls are uniformly thick, and often of granite or of stone, though brick is also met with;e. g., some of the smaller pyramids are built entirely of brick. In all probability the walls of domestic buildings were to a great extent of brick, and less thick than those of the temples; hence they have all disappeared.
The surface of walls, even when of granite, was usually plastered with a thin fine plaster, which was covered by the profuse decoration in color already alluded to.
The walls of the propylons tapered from the base toward the top, and the same thing sometimes occurred in other walls. In almost all cases the stone walls are built of very large blocks, and they show an unrivaled skill in masonry.
The roofing which remains is executed entirely in stone, but not arched or vaulted. The rock-cut tombs, however, contain ceilings of an arched shape, and in some cases forms which seem to be an imitation of timber roofing. The roofing of the hypostyle hall at Karnak provides an arrangement for admitting light very similar to the clerestory of gothic cathedrals.
The openings were all covered by a stone lintel, and consequently were uniformly square-headed. The interspaces between columns were similarly covered, and hence Egyptian architecture has been, and correctly, classed as the first among the styles of trabeated architecture. Window openings seldom occur.
The columns have been already described to some extent. They are almost always circular in plan, but the shaft is sometimes channeled. They are for the most part of sturdy proportions, but great grace and elegance are shown in the profile given to shafts and capitals. The design of the capitals especially is full of variety, and admirably adapts forms obtained from the vegetable kingdom. The general effect of the Egyptian column, wherever it is used, is that it appears to have, as it really has, a great deal more strength than is required. The fact that the abacus (the square block of stone introduced between the moulded part of the capital and what it carries) is often smaller in width than the diameter of the column aids very much to produce this effect.
Mouldings are very rarely employed; in fact, the large bead running up the angles of the pylons, etc., and a heavy hollow moulding doing duty as a cornice, are all that are usually met with. Sculpture and carving occur occasionally, and are freely introduced in later works, where we sometimes find statues incorporated into the design of the fronts of temples. Decoration in color, in the shape of hieroglyphic inscriptions and paintings of all sorts, was profusely employed, and is executed with a truth of drawing and a beauty of coloring that have never been surpassed. Almost every object drawn is partly conventionalized, in the most skillful manner, so as to make it fit its place as a piece of a decorative system.
The character is gloomy, and to a certain extent forbidding, owing to the heavy walls and piers and columns, and the great masses supported by them; but when in its freshness and quite uninjured by decay or violence, the exquisite coloring of the walls and ceilings and columns must have added a great deal of beauty: this must have very much diminished the oppressive effect inseparable from such massive construction and from the gloomy darkness of many portions of the buildings. It is also noteworthy that the expenditure of materials and labor is greater in proportion to the effect attained than in any other style. The pyramids are the most conspicuous example of this prodigality. Before condemning this as a defect in the style, it must be remembered that a stability which should defy enemies, earthquakes, and the tooth of time, was far more aimed at than architectural character; and that, had any mode of construction less lavish of material, and less perfect in workmanship, been adopted, the buildings of Egypt might have all disappeared ere this.