Society of Glass Technology · [Sheffield] · leaf 291
Fig. 4. … Fig. 5. [To face Trans , p. 211 THE MANUFACTURE OF COLOURLESS GLASS. 211 Appendix. The appended photographs (Plate II) of metallic iron and itseffect on the glass may be of interest to manufacturers : Fig. 4 shows the amount of metallic iron taken from the furnaceafter about ten months working. It…
Glass
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