6 z Fußbility. '3 calx "I A 2 argill >powder. = 2 magnefia J ‘3 calx j A 3 magnefia f powder. 2 argill j '3 calx j 2 magnefia ^vitrified. L1 argill J Magnefia, Calx, and Argill. No compound, in which the Magnefia exceeds the other two ingredients, is fufible. Argill, Calx, and Magneßa. 3 argill calx 5-a porcelain. , f 3 ar l < 2 cal ^1 ms magnefia , 3 arg' 11 . A ^ 2 magnefia f a porcelain. 1 calx 3 argill A 3 magnefia }-porous porcelain. 1 calx ' J '3 argill | 3 magnefia >porous porcelain. 2 calx J , '3 aigill 1 2 calx >- porcelain. 2 magnefia 3 cal*