GENERAL HISTORICAL TREATISES.--Jacquemart, "History of the Ceramic Art"--a descriptive philosophical study of the pottery of all ages and nations, profusely illustrated in aquatint and woodcut, and containing one thousand marks and monograms; Semper, "Der Stil in den Künsten," in the second volume treats of ceramics, and is a well-illustrated, comprehensive, and useful hand-book; Mareschal, "La Faïence Populaire au 18me Siècle," has one hundred and twelve colored plates, mostly of French and Delft porcelain; Maze, "Recherches sur la Céramique" is illustrated by photographs, and has a list of marks and monograms; Burty, "Chefs-d'OEuvre des Arts Industriels," gives a popular account of ceramics, well illustrated (there is a translation by Chaffers); Stallknecht's papers on "Artistic Pottery and Porcelain" give also an account of the articles in the Vienna Exposition of 1875; Treadwell's "Manual" is a brief popular work; Hall, "Bric-à-brac Hunter." One of the best works in English is Marryat's "History," well illustrated, in colors. So also is Graesse's "Guide de l'Amateur," a very complete collection, in fac-simile, of marks and monograms. Chaffers's "Keramic Gallery," besides historical notices and descriptions, gives several hundred photographs of rare and curious specimens of these arts. Besides these works, devoted especially to ceramics, it will be well to refer to the following, selected out of many books treating generally of the arts of the middle ages, most of them illustrated in the best style, in which may be found chapters or short treatises on pottery and porcelain, with admirable illustrations adapted for use as designs for decoration: Sommerard's "Arts au Moyen Âge," plates; Villemin, "Monumens Français;" Lenoir, "Musée des Monumens Français;" Lacroix, "Arts of the Middle Ages;" Louandre, "Arts Somptuaires;" "Instrumenta Ecclesiastica;" Racinet, "L'Ornement Polychrome;" Jones, "Grammar of Ornament;" Bedford, "Treasury of Ornamental Art;" Newbery, "Gleanings from Ornamental Art;" Chenavard, "Album de l'Ornamentiste;" "Tradesman's Book of Ornamental Designs;" Wyatt, "Industrial Arts of the Nineteenth Century;" Durand, "Recueil et Parallèles des Edifices de tout Genre;" South Kensington Museum, "Industrial Arts;" "Photographs from the British Museum;" Labarte, "Arts Industriels au Moyen Âge;" Zahn, "Ornamentmalerei."