Mechanical thermometer mb-width 3518 Dave Lawson

Dave Lawson

Views of a stone coffin found at the Guildhall Chapel

Plate 2 facing p

The queen stands in the centre

'Evidence Olfactory'

Mechanical thermometer mb-width 3518 Dave LawsonScheme 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