Heteromorphism is especially characteristic of that style of decoration which we call arabesque, or grotesque. This is said to have been the invention of a painter named Ludius in the reign of the Emperor Augustus. That sovereign is said by Pliny to have been the first who thought of covering whole walls with pictures and landscapes. The fashion for the grotesque spread rapidly, for all the buildings of about that date which have been found in good preservation afford numerous and beautiful examples of it. Vitruvius was entirely out of conceit with this sort of ornament, and declares that such fanciful paintings as are not founded in truth cannot be beautiful; but the general voice, both in ancient and modern times, has pronounced a very different opinion. It was from the paintings found in the baths of Rome that Raphael derived the idea of those famous frescoes in the gallery of the Vatican. His example was immediately followed by other distinguished artists. This style derived its name grotesque from the subterranean rooms (grotte) in which the originals were usually found—rooms not built below the surface of the ground, but buried by the gradual accumulation of soil and ruined buildings.
A typical example of Pompeian treatment is seen in Plate [VI.], Fig. 3, where a bird’s tail passes into a floral scroll.
The representations of such mythical monsters of antiquity as the Sphinx, Chimæra, the Harpies, and so forth, are familiar to all. Originally these embodied distinct conceptions which were familiar to the initiated, if not to all. They were symbols and their origin in art was religious; their retention was due to their decorative quality.
C. Complex Heteromorphs.
We have now to consider the complications arising from a combination of skeuomorphs and biomorphs.
Again I have recourse to Dr. Colley March’s suggestive essay. He points out that in the north of Europe animals were strangled by the withy-band, as occurs on an incised stone from Gosforth (Plate [VII.], Fig. 3). Mr. Hildebrand endeavours to show that the so-called Scandinavian sun-snake was produced by the breaking down into curves of the figure of a lion rampant, copied by a succession of artificers, all ignorant of the appearance of a lion. But in the first place, points out Dr. March, the Norse Wurm is found long ago in prehistoric rock-sculptures. In the next place, the serpent of the north was symbolic of the sea and not of the sun. And then, it was not the unfamiliar lion that alone broke up into serpentine forms; the skeuomorph assailed the stag, as on King Gorm’s stone in Denmark (Plate [VII.], Fig. 2). Eikthysnir, the stag of the sun, who was an attendant and attribute of Frey, is here seen being strangled by the “laidly worm” of Scandinavia. Dr. March suggests that perhaps we may recognise the walrus in rock-sculptures at Crichie in Scotland (Plate [VII.], Figs. 6, 7). That the walrus was well known to the Northmen, and highly prized both for its hide, from which ships’ ropes were made (Plate [IV.], Fig. 4), and for its tusks, which were a source of ivory, is proved by the Orosian story (I. Orosius, i. 14). “He went thither chiefly for walruses, because they have noble bone in their teeth, and their skin is very good for ships’ ropes.” The Earl of Southesk,[112] however, brings forward a considerable body of evidence in favour of the view that this “elephant” symbol, as it has been absurdly termed, is the sun-boar—a symbol of Frey. No animal held a higher place in Scandinavia, and at an early period it was adopted as the national emblem in Denmark, and borne on the standard.
One frequently finds on early Christian sculptured stones that the field on each side of the central cross is occupied by a writhing animal; of these numerous examples occur in the Isle of Man, where they are undoubtedly due to Scandinavian influence. This animal may be recognised in some cases as being a wolf, as on a cross at Michael (Plate [VII.], Fig. 5).
Two skeuomorphs attack the wolf. The influence of thong-work is seen in Plate [VII.], Fig. 1; this may be compared with Plate [IV.], Fig. 4, which is copied from a sculptured stone at Malew, also in the Isle of Man. The latter is one of several Manx skeuomorphs of leather or strap-work.
The withy-band is even more frequently depicted, and on a cross at Gosforth (Plate [VII.], Fig. 3) the wolf is being strangled by it.
The serpent or dragon also is frequently represented, indeed it seems as if the wolf and the serpent passed insensibly into one another, and nothing is easier than to confound the latter with twisted bands. So the animal fades away, till finally the skeuomorph triumphs, and only the ghost of a zoomorph remains in what, to ordinary eyes, is only an entwisted fibre (Plate [VII.], Fig. 11).