My thanks

Dott. Pasquale Scannapieco for coordinating and participating in the drawing up of the texts.

To Prof. Rastrelli from Università degli studi di Salerno,
Prof. P. Nappi from Università degli studi di Milano,
Prof. L. Pianese Consorzio Campania Ecologia, Castelvenere
for his courteous collaboration.

to the photographer Enzo Rando for the concession of photographic material.

to The Thermalists Association of Ischia for their courteous collaboration;