Pinacotheca, the picture-gallery, and Bibliotheca, the library, need no explanation. The latter was usually small, as a large number of rolls (volumina) could be contained within a narrow space.
Exedra bore a double signification. It is either a seat, intended to contain a number of persons, like those before the Gate of Herculaneum, or a spacious hall for conversation and the general purposes of society. In the public baths, the word is especially applied to those apartments which were frequented by the philosophers.
Such was the arrangement, such the chief apartments of a Roman house; they were on the ground-floor, the upper stories being for the most part left to the occupation of slaves, freedmen, and the lower branches of the family. We must except, however, the terrace upon the top of all (solarium), a favorite place of resort, often adorned with rare flowers and shrubs, planted in huge cases of earth, and with fountains and trellises, under which the evening meal might at pleasure be taken.
The reader will not, of course, suppose that in all houses all these apartments were to be found, and in the same order. From the confined dwelling of the tradesman to the palace of the patrician, all degrees of accommodation and elegance were to be found. The only object of this long catalogue is to familiarize the reader with the general type of those objects which we are about to present to him, and to explain at once, and collectively, those terms of art which will be of most frequent occurrence.
The reader will gain a clear idea of a Roman house from the ground-plan of that of Diomedes, given a little further on, which is one of the largest and most regularly constructed at Pompeii.
We may here add a few observations, derived, as well as much of the preceding matter, from the valuable work of Mazois, relative to the materials and method of construction of the Pompeian houses. Every species of masonry described by Vitruvius, it is said, may here be met with; but the cheapest and most durable sorts have been generally preferred.
Copper, iron, lead, have been found employed for the same purposes as those for which we now use them. Iron is more plentiful than copper, contrary to what is generally observed in ancient works. It is evident from articles of furniture, etc., found in the ruins, that the Italians were highly skilled in the art of working metals, yet they seem to have excelled in ornamental work, rather than in the solid and neat construction of useful articles. For instance, their lock-work is coarse, hardly equal to that which is now executed in the same country; while the external ornaments of doors, bolts, handles, etc., are elegantly wrought.
The first private house that we will describe is found by passing down a street from the Street of Abundance. The visitor finds on the right, just beyond the back wall of the Thermæ Stabianæ, the entrance of a handsome dwelling. An inscription in red letters on the outside wall containing the name of Siricus has occasioned the conjecture that this was the name of the owner of the house; while a mosaic inscription on the floor of the prothyrum, having the words Salve Lucru, has given rise to a second appellation for the dwelling.
On the left of the prothyrum is an apartment with two doors, one opening on a wooden staircase leading to an upper floor, the other forming the entry to a room next the street, with a window like that described in the other room next the prothyrum. The walls of this chamber are white, divided by red and yellow zones into compartments, in which are depicted the symbols of the principal deities—as the eagle and globe of Jove, the peacock of Juno, the lance, helmet and shield of Minerva, the panther of Bacchus, a Sphinx, having near it the mystical chest and sistrum of Isis, who was the Venus Physica of the Pompeians, the caduceus and other emblems of Mercury, etc. There are also two small landscapes.
Next to this is a large and handsome exedra, decorated with good pictures, a third of the size of life. That on the left represents Neptune and Apollo presiding at the building of Troy; the former, armed with his trident, is seated; the latter, crowned with laurel, is on foot, and leans with his right arm on a lyre. On the wall opposite to this is a picture of Vulcan presenting the arms of Achilles to Thetis. The celebrated shield is supported by Vulcan on the anvil, and displayed to Thetis, who is seated, whilst a winged female figure standing at her side points out to her with a rod the marvels of its workmanship. Agreeably to the Homeric description the shield is encircled with the signs of the zodiac, and in the middle are the bear, the dragon, etc. On the ground are the breast-plate, the greaves and the helmet.