Apparatus to show the relative expansion of different liquids
Apparatus with a tube with bulb shaped ending containing red unspecified liquid mounted in a frame.
Apparatus to show the relative expansion of different liquids, made by Watkins & Hill, 5 Charing Cross, London with 3 sealed glass tubes containing mercury, oil and (coloured) water respectively (A fourth tube is missing)
Apparatus with a tube with bulb shaped ending containing red unspecified liquid mounted in a frame.