Abstract
IT was reported in the Times of March 27 that an accident had occurred during the pouring of the twenty tons of glass into the mould of the two hundred inch mirror for the new reflector for the California Institute of Technology. Part of the mould came loose and floated to the top of the molten glass. As soon as the pouring was completed, the cores were fished out of the molten mass. According to a message issued by Science Service, Dr. Hostetter, who was in charge of the operations, said that this mishap would not affect the success of the mirror, which has now been set aside to cool very slowly. After the months of cooling have elapsed, it will take several years to grind the surface of the mirror. Our readers will join with us in expressing the hope that it will be found that the incident of the break-up of the mould will not have spoilt the present pouring of glass.
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The 200 inch Reflector. Nature 133, 605 (1934). https://doi.org/10.1038/133605b0
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DOI: https://doi.org/10.1038/133605b0