A Brief Account of the Experiments Tryed with Glass Balls By Mr Hook - of Driving out the Air by heat onely - of driving it out by Vapours - of their besaking of themselves - of their breaking by a knock -of the Quantity of Water they admitted - of the weight of the Air admitted - of their shrinking and stretching - of their besaking outwards Provides reasoning on results and some questions for future experiments Figure in text 26 November 1662