Robert Boyle's barometer Size:M: 75 x 50cm St George's Circus

St George's Circus

with his grindstones on a barrow improvised to transport them

Side view of a Doctorfish [Acanthurus

16th March 1966

Robert Boyle's barometer Size:M: 75 x 50cm St George's CircusFig. 1: Boyle's experiment 'About the greatest height to which Water can be rais'd by Attraction or Sucking Pumps'; Fig. 2: 'Wherein is proposed a way of making Barometers, that may be transported even to distant Countries'; Figs. 3 and 4: 'Shewing that an Oblique pressure of the Atmosphere may suffice to keep up the Mercury at the wonted height in the Torricellian Experiment, and that the Spring of a little included Air may do the same.' Plate 5 from