Curiosities of glass making : with details of the processes and productions of ancient and modern ornamental glass manufacture (1849)
Pellatt, Apsley, 1791-1863 · London : D. Bogue · leaf 92
our times. The recently frac- tured parts are quite bright, colourless, and transparent, and melt with the blow-pipe, (but not very readily;) proving the fragment to be artificial, and not real crystal, as at first the author was led to conjecture. STATE OF THE FURNACE AT THE COMMENCEMENT OF THE… … adheres; at the same time, the iron is kept in constant rotation by the blower until the requisite quantity of metal is gathered. Should a large quantity be wanted, the first gather- ing must be taken out of the pot, and cooled by exposure to the air; and when the lump is somewhat consolidated,…
Glass manufacture · Glassware · Glassware, Ancient
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