Home › Authors › R. T. Stull 👤 R. T. Stull b. 1875 ยท 6 books Books by R. T. Stull Tests on clay materials available in Illinois coal mines 1917 Deformation temperatures of some porcelain glazes 1913 Designs of seven test kilns 1913 Cobalt colors other than blue 1912 Notes on the manufacture of enamel brick with some investigations on enamel brick slips 1910 A cheap enamel for stoneware 1908