Identifier: crockeryglassjou78newy (find matches)
Title: Crockery & glass journal
Year: 1875 (1870s)
Authors:
Subjects: Pottery Glass Glassware
Publisher: New York : G. Whittemore & Co.
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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ect. The zinc oxideused in making the cobalt preparation, however, merelyimproves the vitrification of the alumina and cobaltpreparation, the small quantity used having no effecton the melting point. For aerograph decoration, cobalt is treated in justthe same way as any other pigment, being carefullyground and sifted. In colored glazes cobalt also playsan important part. The cobalt blues are largely di-luted with comparatively fusible adjuncts, chiefly zincoxide, lead oxide, and borax. For dark blues, 6 partsof these adjuncts are taken to 1 of pigment, whilst forlighter shades the proportions may be increased to 10:1. Cobalt is also largely used in the glass industry,either for superficial application or staining the glassall through. Owing to its powerful staining propertiesthe proportions required are much smaller than for dec-orating pottery, 1 part in 10 being sufficient to producea deep bine coloration, whilst pale blue can be obtainedwith 1 part in 14 when applied superficially.
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IS: 1 4 L Bernardaud & Co. Limoges* France. FINE FRENCH CHINA. IMPORT lines for 1914 ready early in the season.We carry eighteen open stock dinner patternsbesides regular sets and short lines in stock in NewYork ready for immediate delivery. Our new lineswill be replete with attractive decorations. Prompt deliveries from stock. SOLE AGENTS FOR THE UNITED STATES L. Bernardaud ^ Co 7X7

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