French porcelain letters sent to Father Orry in Paris were first published by Jean-Baptiste Du Halde in 1735, with English editions appearing in 1736 or 1738. The letters were later again published by Abbé Jean-Baptiste Grosier in his "General Description of China". D'Entrecolles also sent material specimens to Europe, which were analysed by Réaumur, and led to the establishment of the Sèvres Manufactory once equivalent materials were found in Europe. After 1730, polychrome porcelain also came to be produced, often in imitation of Chinese polychrome styles of porcelain, such as the "Famille rose" types. The Japanese "Kakiemon" style of Arita porcelain, Japan,
Jingdezhen porcelain were appointed by the provincial administration up until 1726, when Beijing appointed Nian Xiyao. Wares of this interim period are often called "Transitional", and include the Tianqi porcelain mostly made for the Japanese market. The effect on the Jingdezhen potters was "liberating", as the range of subject matter in decoration greatly expanded. Printed books had become much more widely available, and were used, directly or indirectly, as sources for scenes on porcelain. Conveniently for the historian, many pieces began to be dated. Towards the end of the period the first "famille rose" porcelains appeared; the various colour "families" were to