Abstract
Two portable sundials of considerable interest have recently been acquired and placed on exhibition in the Time Measurement Section of the Science Museum. The first is an ivory column or ‘pillar’ dial dated 1587, designed for use in a latitude of 44° and indicating hours on the old Italian system in which the day-and-night period was divided into 24 equal parts, starting from sunset. The second dial is a ‘universal’ one, adjustable for use over a wide range of latitudes ; it is by Dollond, the well-known eighteenth century London maker, and has been presented to the Museum by Mr. J. Bentley Bennett.
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New Sundials at the Science Museum. Nature 141, 156 (1938). https://doi.org/10.1038/141156d0
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DOI: https://doi.org/10.1038/141156d0