To Unplumbed Depths, by H Hass

To Unplumbed Depths
by Hans Hass

Hans Hass was an Austrian biologist and underwater diving pioneer. He was known mainly for being among the first scientists to popularise coral reefs, stingrays and sharks. He pioneered the making of documentaries filmed underwater and led the development of a type of rebreather.

Hardback with dust jacket in protective cellophane cover. Good condition: Very small tears to back of dust jacket. Inside pages in very good condition.
Inscribed ion front endpaper ‘October 1975. Happy Birthday, Mum & Dad’. JB bookplate on front endpaper.

Black and white and colour photographs throughout.
1972, Harrap, London (First English edition)
266 pages, 175mm x 243mm (approx. 7in x 9.5in)