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<rdf:Description rdf:about="https://calmview.co.uk:443/RCPI/CalmView/record/catalog/MIMM/2019-3/9" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Fletcher's Thermohydrometer</dc:title>
  <dc:description>Fletcher's Thermohydrometer.  Glass body weighted with liquid mercury.  Paper scale with ranges 0,950-1,000 and temperature 0-212 (Fahrenheit) and [minus] 20-100 (Celsius).  Hydrometers are used to measure the density or specific gravity of liquids.  A thermohydrometer is one which also incorporates a thermometer for temperature measurement.</dc:description>
  <dc:date>1900-1949</dc:date>
</rdf:Description>