This section is from the book "Arts & Crafts Magazine Vol1-2", by Hutchinson & Company.
(1) For painting on glass in mineral colours, fat oil is used for mixing the enamel to a rather thick consistency, turpentine to thin it and make it flow, or oil of lavender is used as a medium. For using our four panels," the elements", for a fire screen, as you propose, sheets of pinkish hue might he-procured, portions of the clear glass being specially " reserved " for the flesh. Yellow stain would be effective for parts of the drapery and ornament, the outlining and shading being done in brown. (2) Broad tones of enamel colour are laid on at first quite dark, and then modelled with an old bristle brush, and the lights are wiped out. (3) It would be a waste of time and material to attempt to decorate glass with china colours. The latter require an intense heat, which would soon melt glass.
H.P. (Burslem). - (1) When blue flowers have yellow centre, they must be fired before the centres are painted, or the paint must be carefully scraped away and not allowed to come in contact with the yellow, or the colours will blend in tiring and become green. (2) At one time it was possible for amateurs to buy the white china used at the Royal Worcester Works, as well as the colours used there, but the privilege was withdrawn, we believe, on account of the market consequently being "flooded" with discreditable imitations of the genuinely decorated ware.