Dr Papin's experiments in the Vacation time during the Recess of the Royal Society 30 July - Observations of a frog and a fly 'in vacuo' 6 August - on warm water, cold water and warm beer 'in vacuo' 13 August - on a pear 'in vacuo' 20 August - thermoscope absent of air 27 August - experiment with cork in water 17 September - a bottle full of air in an exhausted receiver 1684