books.google.co.uk - The medusa is a tiny jellfish that lives on the ventral surface of a sea slug found in the Bay of Naples. Readers will find themselves caught up in the fate of the medusa and the snail as a metaphor for eternal issues of life and death as Lewis Thomas further extends the exploration of a man and his...http://books.google.co.uk/books/about/The_medusa_and_the_snail.html?id=RczZAAAAMAAJ&utm_source=gb-gplus-shareThe medusa and the snail