Description
Summer 2015
60 pages
HDS 25 Years issue
The secret of Jean Barrié – a 17th century conundrum; Up from the Seabed – identifying a demand valve recovered from the seabed; Revisiting the Halley Bell; the pioneer ‘submarine’ boat Platypus; Pilatre de Rozier’s respirator; Update on Lethbridge barrel dive times; HDS and Museum news; Undercurrents; Obituaries: Pauline Ady. Lotte Hass, Dr Eugenie Clark, Dame Margaret Rule; Robert ‘Bob’ Maloubier.
