Description

King George and family using a pony trap to avoid the use of petrol

A defensive gun emplacement sits in the foreground

Bibliographische Institut

London holding umbrellas 15th March 1965

Thermometrical barometer mb-width 3334 King George and family usingPlate 7 from the paper 'Description of a thermometrical barometer for measuring altitudes' by Francis John Hyde Wollaston, Philosophical Transactions of the Royal Society, vol. 107 (1817), pp. 183 196. The figures show the fully assembled instrument (figure 7) with details of components including the thermometer and a Vernier scale. Original: ink on paper. 1817

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Thermometrical barometer mb-width 3334 King George and family using

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