POWERHOUSE COLLECTION

Clinical thermometer made by G M Zeal

Clinical thermometer made by G M Zeal

Object No. 87/1490D

People have long known that changes in body temperature can indicate ill health. In Italy around 1625 Santorio developed the first clinical thermometer, but it was large and slow to register, so the idea didn't catch on. In Germany in 1868 Carl Wunderlich analysed over a million body temperature readings and deduced that the normal range is 36.3 to 37.5 degrees C. Giles Henry Zeal began making his improved clinical thermometers in London in 1888, and his firm, which made this one in 1987, now also makes quick-acting digital thermometers. Debbie Rudder

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Summary

Object Statement

Clinical thermometer, made by G M Zeal, London, England, 1987

Physical Description

Clinical thermometer, made by G M Zeal, London, England, 1987

SOURCE

Credit Line

Purchased 1987

Acquisition Date

24 November 1987

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