Porcelain. Dillon Edward

      As for the Ko yao, the old ware of Sung times is said to have been first made in the twelfth century. The Chinese character with which ‘Ko’ is written means ‘elder brother.’ According to the books there were at this time at Lung-chuan two brother potters named Chang. The elder brother leaving the younger Chang to continue in the old ways, started to make a new ware distinguished by the crackle of its glaze. This was originally a thick, heavy ware, with the iron-red foot and white paste already noticed, but, as we have said, the name is now used for a large class of crackle ware with a glaze of celadon, of greyish white and especially of a yellowish stone colour. This porcelain with grey and yellowish crackle does not seem to have been so largely exported as the uncrackled celadon; bowls and jars of a similar ware have, however, been found in Borneo and in the adjacent islands.

      Chün yao.—It is to this ware that we may trace back the now famous family of flambé porcelain. Chün yao was already made in early Sung times, i.e. before the Mongol conquests of the twelfth century, in Honan, not far from the old capital of Kai-feng Fu. A description in a work of the seventeenth century leaves no doubt as to its identification. ‘As to this Chün yao,’ the writer says, ‘a fine specimen should be red as cinnabar, green as onion-leaves or the plumage of the kingfisher, and purple, brown, and black like the skin of the egg-plant.’ We have here the description of that ‘transmutation’ or flambé ware of which such magnificent examples were made at King-te-chen in the seventeenth and eighteenth centuries, and which has lately been successfully imitated in France. The play of flashing colour in the glaze was said to have been originally the result of accident, but we must not attach much importance to statements of this kind. In the old Sung pieces the clay is less white and fine than in the highly finished examples made at King-te-chen during the reigns of Kang-he and Yung-cheng. On the Sung ware we may frequently find a number (from one to nine) engraved, sometimes more than once, in the paste, and these characters are carefully copied in the later reproductions. We have here perhaps the earliest instance of the employment of a mark on porcelain. The old writers tell us apologetically of the vulgar names given, by way of joke, it would seem, to these glazes, such as mule’s lungs or pig’s liver—no inapt comparisons, however, for some of the effects seen in these old wares. These varied hues were of course obtained from copper in the first place, though the presence of iron, in both stages of oxidation, may sometimes add to the variety of the tints.

Kien yao.—This was a dark-coloured ware made at Kien-chou, north-west of the port of Fuchou. It must not be confused with the well-known creamy-white ware of Fukien, exported in later days from the same port. Certain shallow conical cups of this ware, with a vitreous glaze, almost black, but relieved around the margin with small streaks and spots of a lighter colour, were especially valued from very early times for the preparation of powdered tea—nowhere more than in Japan, where an undoubted specimen of this Kien ware is treasured as a priceless heirloom. There is an excellent specimen in the British Museum: a careful examination of this little bowl will give no little aid in understanding what are some of the qualities that are looked for in China and Japan in these old glazes. There is a quiet charm in the glassy surface, and an air as of some quaint natural stone carefully carved and polished rather than of a product of the potter’s wheel.

      Ting yao.—In the Ting yao of the Sung dynasty, as in the case of the contemporaneous celadon and crackle wares, we have the oldest type of an important class of porcelain. The earlier specimens have served more than once as models for famous potters of Ming and later times. It was probably at Ting-chou, a town in the province of Chihli, to the south-west of Pekin, that a brilliant white porcelain was first successfully made by the Chinese, possibly as early as the time of the Tang dynasty; and the name of Ting yao has remained associated with all pure white wares of a certain quality, even though made at other places. As in the case of the celadon porcelain, the decoration, if any, was either in low relief or incised in the paste; but in opposition to many of the other wares we have mentioned, the Ting porcelain seems from the first to have been made from a paste of great fineness, its translucency was at times considerable, and the patterns were engraved or moulded with much delicacy. The design when engraved is scarcely visible unless the vessel is held up to the light. The specimens of Ting ware that survive date probably from Mongol or from Ming times. The British Museum possesses a remarkable collection of these Ting bowls and plates. A pair of very thin pure white shallow bowls are noticeable as having in the centre an inscription finely engraved in minute characters under the glaze. It is the nien-hao or year-mark of the Emperor Yung-lo (1402-1424), the first great name among the emperors of the Ming dynasty. This is perhaps the earliest date-mark with any pretentions to genuineness that has been found on the Chinese porcelain in our collections. The decoration, in this case, is formed by a five-clawed dragon faintly engraved in the paste. These bowls are specimens of the feng or ‘flour’ Ting ware (also known as Pai or ‘white’ Ting), but most of the Ting plates in the same collection are of quite another kind of ware, which has a surface like that of a European soft-paste porcelain—this the Chinese know as the Tu-Ting or earthy Ting. This latter ware has in fact a soft lead glaze covering a hard body, and must therefore have required two firings, the first to thoroughly bake the paste, and a second at a lower temperature to melt the glaze on to it. Some of the specimens of this Tu-Ting in the British Museum are said to date from Sung times. I do not know what is the authority for the use of a lead glaze in China at so early a date. Many of these plates have certainly a great appearance of age, but this antique look is due in some measure to the ‘weathering’ of the soft glazes on the exposed surfaces. This weathering has brought into prominence the very graceful decoration of lotus-flowers, but the surface is often discoloured by stains as of some oily matter which has apparently found its way under the glaze. The copper bands with which the edges of many of these plates are bound are mentioned in the old accounts; those in use in the palace, it is said, were fitted thus with collars to preserve the tender material.

      We must postpone the account of the rival white ware, the creamy porcelain of Fukien, or later Kien yao, as none of it was made as early as the time of the Sung dynasty. The Kien yao of that time, as we have seen, was quite another ware.

      We have now mentioned the most important of the classes of Chinese porcelain that date from early times. We have confined our brief notice to the varieties of which specimens have survived, laying special stress upon those kinds which have, as it were, founded a family, and which we can therefore study in specimens from later ages. The names of many other wares of both the Sung and Tang periods may be found in Chinese books, but of these we do not propose to say a word.

      The paste of these early wares is rarely of a pure white, and their translucency is generally very slight, but they are not for that reason to be classed as stonewares. The materials were probably in all cases derived from granitic rocks, that is to say, from a more or less decomposed granite (containing mica and often a certain amount of iron) mixed with some kind of impure kaolin. Professor Church, in his Cantor Lectures, gives us two analyses of ‘old Chinese ware,’ which confirm this view. One specimen, with a white body, was found to contain 75 per cent. of silica, about 18 per cent. of alumina, and about 5·5 per cent. of alkalis (chiefly potash). The other, of brownish coloured paste, contained a little less silica, but as much as 2·5 per cent. of iron. For the roughly prepared material of these old wares we would prefer the name of proto-porcelain or kaolinic stoneware, so that there may be no confusion with the true stoneware of Europe, a quite different material.33

      In the absence of more ordinary clays