Society of Glass Technology · [Sheffield] · leaf 180
For the sake of clearness, the data represented in Fig. 4 havebeen confined to those obtained from ineasui*ements of two indivi-dual rods only; a number of other rods of the same material havebeen tested under similar conditions, and the results in all casesagree substantially with those indicated… … 5 10 Distance below surface {m.m.) China clay 9.^ per cent. Felspar 7 per cent. Cone 27Porosity 16*2 per cent. Fig. 5, treatment and condition of the refractory material, we may showthe two graphs of Fig. 5. Here the glass used (S.G.4) and thetemperature (1230°) were the same as in the experiments…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
