Description
Head and shoulders portrait of the Comte de Buffon
The Ringmaster is the Conservative Prime Minister
Within an inscribed oval surround
'Henry Woods
Mechanical thermometer Size:S: 45 x 30cm Head and shoulders portrait ofScheme for a thermometer using temperature variations in an iron rod to move a dial on a clock face temperature scale. The textual account notes that the melting points of metallic elements might be tried and marked upon the scale. From the manuscript copy of 'A discourse concerning the usefulness of thermometers in chemical experiments together with a description and uses of a new invented metalline thermometer', by Cromwell Mortimer. The drawing is
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