Unter Korallen und Haien, by H Hass

Unter Korallen und Haien, Abenteuer in der Karibischen See (Among coral and sharks, adventure in the Caribbean Sea ) 
by Hans Hass
German language edition

Hans Hass, Austrian biologist and diving pioneer, 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 assisted in the development of an underwater camera and a type of rebreather. He wrote 25 books and received dozens of international awards.
This book describes Hass and his friends’ diving experience in the waters around Curacao and Bonaire.
Hass’ second book – not translated into English.

Hardback. Very worn condition. Cover boards worn, scratched, speckled; corners rubbed bare. Spine repaired using brown paper strips and title written on spine in pencil. Rough cut pages of varying sizes (as published); all mottled. John Bevan bookplate on inside front cover board. Title page (speckled and marked) is inscribed ‘Gertrud(?) Grosskopf’.

Black and white photographs interspersed throughout.
1941, Deutchser Verlag, Berlin (First edition)
264 pages, 170mm x 246mm (approx. 6.75in x 9.75in)