It is characteristic of the Chinese mind that during this period, when a spirit of eager experiment was abroad, the productions of their ancient kilns should receive no less attention than the new methods of decoration in on-glaze colours, while at the same time many of the discoveries of the later Ming days were carried on to perfection. The first remarkable productions of the reign of K’ang-hi, the famous green and blood-red Lang-yao glazes, were made in the attempt to produce glazes like those of old times. With the more carefully prepared body and glaze the results are strikingly different and, as we think, superior, for it is difficult to believe that any example of the “sacrificial” red of the reign of Suen-tê can have been as glorious as the red Lang-Yao, the crown of all that group of glazes known from their general colour as sang de boeuf (see example, Plate VII.). In the same way the traditional blue and white of the Ming period was continued with the greatest skill, and, if the blue pigment be not so pure as that of the 15th century, the decorative effect of the blue and white of the reign of K’ang-hi (see example, Plate VIII.) has never been equalled in Europe. The subjects of the blue and white pieces of this period are very varied, including religious, ceremonial, battle and hunting subjects, homely scenes such as ladies and children amusing themselves in gardens, or animals, birds, dragons and other fabulous monsters disporting themselves in clouds or waves. The so-called “hawthorn ginger jars” form a class by themselves in the opinion of modern collectors (see the plum-blossom jar, Plate VIII.), a specimen being sold at the Louis Huth sale (1906) for £5900. The fertility of the painters was remarkable, and a collection of the blue and white of this reign offers a fine feast of ceramic colour from the harmonious relation between the tones of the white and the blue, especially when it is seen en masse, as in the famous Dresden collection.[33]
The practice of painting the ground of a piece in blue so that the pattern was reserved in white (even artfully heightened by the use of slip) dates from Ming times, but the grounds of powder-blue appear to have originated at this time. The cobalt-pigment was not applied by a brush, but was blown on through a tube, one end of which was covered with fine muslin, in a rain of minute drops. This ground was either carried over the whole piece so as to give the effect of a vibrating blue glaze—in which case it was generally covered with conventional designs pencilled in ground-up gold-leaf over the glaze—or panels were reserved in white on which floral designs were afterwards painted in on-glaze colours.
In the same way the decoration in underglaze red was revived or re-introduced, and probably the finest pieces of this ware, as of so many others in our great European collections, date only from the beginning of the 18th century. Eggshell wares and pierced or reticulated pieces were made to great perfection, and the coloured glazes in light green, turquoise, purple and black (see Plate VII.) reached their height. The early glazes of this type appeared in Sung times (see above), but on the finely prepared K’ang-hi wares much more striking and brilliant colour effects were obtained. As in old times, for the production of some of these glazes a departure was made from the general Chinese methods. The vessels were first fired to the “biscuit” state, and then soft alkaline glazes coloured with copper or manganese were fired over them at a much lower temperature so as to give the “peacock-blue,” “kingfisher-green” and “aubergine-purple” glazes. Many varieties of single-coloured glazes were made by covering a white glazed piece with on-glaze colour, and in this way new shades of coloured glaze, such as the coral-reds (Plate VII.), were obtained. The various brown or bronze-coloured grounds, so well known in the so-called “Batavian” porcelain, were obtained by coating the piece with a slip of some ochreous clay under the usual white glaze. Even these methods do not exhaust the fertile resources of the potters of this period, for they carried on concurrently the style of decoration in overglaze colours, first in the schemes characterized by the predominance of a vivid green enamel (famille verte; see Plate VIII.), and finally, in the 18th century, in the schemes in which rose, pink and purple colours predominate (famille rose; see Plate VIII.). It is probable that these latter colours, which owe their tint to gold, were introduced into China from Europe, but the Chinese employed them whole-heartedly, until in fact they largely ousted all the earlier types of colour decoration.
During the reign of Yung-Chêng (1723-1735) the diverse styles seem to have been finally struggling for mastery. Yung-Cheng was an ardent collector of ancient Chinese porcelains, and he sent to King-tê-chên specimens of the most ancient wares, whether of pottery or porcelain, to be reproduced, while at the same time he and his court patronized the wares in foreign styles and colours (Japanese and European.)
The struggle continued practically to the end of the 18th century, but in spite of certain brilliant inventions, such as the “iron-rust” and “tea-dust” glazes of the reign of K’ien-lung in harmony with old Chinese effects, what we must regard as the inferior decorative style triumphed, and we see the gradual disappearance of the ancient methods in favour of (1) wares of a beautiful white body decorated only with on-glaze colours, principally those of the famille rose, and (2) a very large production of inferior wares, made in European shapes and decorated with on-glaze painting and gilding to suit the European taste of the 18th century.
This “armorial” china, so much of which was once foolishly ascribed to Lowestoft, has little to commend it. The material is seldom of the best quality, and the Chinese rendering of European arms and crests, or stiff copies of European engravings surrounded by quasi-oriental borders of diaper, &c., does nothing to recommend it. A great deal of this ware, though manufactured at King-tê-chên, was decorated at Canton, and the school of pottery decorators founded there by reason of this export trade also produced a certain number of pieces in pure Chinese taste, especially some of the ruby-backed plates and dishes and the small cups and saucers decorated with deftly-painted designs of cocks, peonies, &c.
It must be pointed out that the great change implied in the replacement of patterns painted in blue under the glaze by those painted in colours over the glaze profoundly influenced the style of painting. In the earlier wares the treatment is bold and vigorous as becomes true pottery colour, and the softening of the colour by the melting glaze adds to the artistic charm of the result. Painting on a fired glaze is like painting on glass—fine lines, delicate drawing, and skilful stippling or cross-hatching are just as natural in this method as they are impossible or uncertain in the other. Naturalism of rendering takes the place of conventional decorative treatment, and elaborate minuteness of finish supplants the broad freedom of direct brushwork. During the 18th century the same leaven was at work on the porcelains of China and of Europe, the East influenced the West, and the West in its turn bore down the East. If Chinese porcelain remained superior to its European counterfeits, it was because the Chinaman was still the better potter and had a longer tradition of decorative art behind him.
There is little to be said of Chinese porcelain during the 19th century. The European demand was practically killed by the growth of porcelain works at home, and the imperial patronage, so great a factor in the production of artistic wares, was fitful and uncertain. Tao-Kwang (1821-1850) gave some attention to porcelain, and the pieces made for him and marked “Shen-te-t’ang” are valued by collectors. The so-called Peking bowls of his reign (made of course at King-tê-chên) are also of repute. But the political difficulties of China left little leisure for the cultivation of the arts; the successive wars with France and England served only to scatter the splendid wares of the past (see the Musée Chinoise at Fontainebleau), and during the reign of the next emperor Hien-fêng (1851-1861) the T’aipings overran the province of Kiang-si and destroyed King-tê-chên and its factories. Since then the town has been rebuilt and is once again producing Chinese porcelain. Tempted doubtless by the high prices now paid in Europe and America for examples of the Chinese porcelains of the 18th century, modern copies of the single-coloured, sang de boeuf, flambé and other glazes are being made, while the highly prized “hawthorn” jars and black-ground vases are receiving the same undesirable attention.
Materials and, Manufacture of Chinese Porcelain.—For many centuries after its first appearance Chinese porcelain differed from every other known species of pottery both in its material and its manufacture. While the pottery of all other countries was generally made of coloured clays mixed only with sand or broken “shards” and fired at a comparatively low temperature, Chinese porcelain was compounded from the purest white clays, sand and fusible rock; it was glazed with fusible rock, and it was so hard fired that the entire mass became vitrified and translucent. The germ of the manufacture lay in the discovery of large masses of primary clay (kaolin) mixed with finely-ground felspathic rock (petuntse), both of which were carefully washed, levigated and purified. The body of Chinese porcelain varied from time to time within wide limits, but, broadly speaking, it always consists of purified kaolin, petuntse and quartz (sand), mixed in various proportions, sometimes with additional ingredients, according to the quality of ware desired. For the glaze the purest and cleanest portions of the felspathic rock (petuntse) were selected and mixed with lime—all being ground to fine powder. The lime causes the glaze to melt at a lower temperature than would be necessary for petuntse alone. The lime also gives the Chinese glazes their luscious softness of aspect and the faint greenish or bluish tone, while it enabled them to receive the later decorations in piled-up enamels, impossible on the harder European porcelain glazes of the 18th century. The finely-prepared glaze was applied to the clay vessels, before they had been fired, either by dipping, by painting, or by insufflation; and then glaze and body were fired together at a very high temperature. For certain glazes—turquoise, purple, &c.—which were not of the felspathic type, the vessels were first fired to the “biscuit” state, and the glazes were then applied and fired at a much lower temperature—the usual practice of the potters of other countries. When painted wares in blue and red were first introduced, the necessary pigments were painted on the pieces before firing, the glaze was applied over them, and then all was finished at one and the same firing. With the later enamel colours the piece was first fired as above described, and the fusible colours were then painted on the glaze, which was of course like glass. A second firing at a lower temperature fused these on-glaze colours to the ware. For information on Chinese materials and methods the reader is referred to the letters of Père d’Entrecolles in the collection of Jesuit letters known as Lettres édifiantes et curieuses. The English reader will find reliable translations of the essential parts in Bushell’s Oriental Ceramic Art, Dillon’s Porcelain, and Burton’s History of Porcelain. Later information will be found in Brongniart’s Traité des arts céramiques, especially in the 3rd edition, 1877; and in an article by G. Vogt, Bulletin de la Société d’encouragement pour l’industrie nationale, April 1900, pp. 530-612.
Collections.—The Franks collection in the British Museum; the Victoria and Albert Museum, where the famous collection of Mr George Salting has for years been displayed, together with the collections belonging to the museum. Paris, the Grandidier collection at the Louvre; the collection at the Musée Guimet; the Sèvres Museum. Fontainebleau, the Musée Chinoise. Dresden, the Porcelain Collection—the oldest in Europe. Boston, the Museum of Fine Arts. New York, the Metropolitan Museum containing the Garland and other collections. Washington, the Hippisley collection; as well as magnificent private collections, at the head of which is that of the late W.T. Walters of Baltimore.