John Evelyn18 July 1661 – 24 July 166119 July 1661We tried our Diving-Bell, or engine, in the water dock at Deptford, in which our curator continued half an hour under water; it was made of cast lead, let down with a strong cable.Other diaries for 19 July ↗⁂Earlier entries27 June 1661 – 3 July 1661Later entries1 August 1661 – 7 August 1661