ANCIENT GLASS-MAKERS.
Though the art of making glass of certain kinds is very old, spectacles had to wait on the discovery or invention of some method that would produce it perfectly transparent. Specimens of glass have been found in the Egyptian tombs that are more than 4000 years old .and glass bottles are represented on tombs at least 1500 years earlier. In Mesopotamia the art of making glass has been traced for at least 2000 years 8.C.. But
all the glass of antiquity was of inferior quality, and was almost. useless for purposes where the lays ot light were to be transmitted unbroken -and with undiminshed energy. _ Mir rors were also made in Egypt thousands of years before the Christian eia. The materials used were obsidian, zinc and silver. Glass mirrors are mentioned by PUny, but as theywere neb ther perfectly plane nor foliated, thej
£ve back a very imperfect image and were not much esteemed. Tha - “ gs'TcmtScy-, Tn shown by the little old buildings m Em ope. Q iisuailv round or nearly so, and so us „„ , h . lt oue of them can easily be S between, the tips of the fingers and the thumb.
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Shannon News, 5 October 1923, Page 4
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195ANCIENT GLASS-MAKERS. Shannon News, 5 October 1923, Page 4
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