Paper, 'A brief account of ye expts [experiments] tryed with Glasse-Balls' by Henry Oldenburg The experiments accounted for include: '1. Of driving out ye air by heat only. 2. Of driving it out by vapour. 3. Of their breaking of [illegible]. 4. Of their breaking by a knock. 5. Of ye quantity of water they admitted. 6. Of ye weight of ye air admitted. 7. Of their shrinking and stretching. 8. Of their breaking outwards.' Subject: Physics 17th century