A circulating bath is the best solution to keeping any liquid temperature within narrow limits because the liquid is circulated through a chiller (or heater, depending of the temperature you want to maintain) and compensate for the thermal variations caused by the environment on a still liquid.
  René J.

Emily Sours  wrote:
  We purchased a vibratome which comes with a buffer ice tray. Does this
serve the same purpose as the circulating bath (to keep the buffer cold)?
Why would one need a circulating bath?

Emily
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trapped in space the endless void
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