books.google.co.in - Man has been intrigued by the origin of pearls, sensitive to their beauty, & convinced of their medicinal value for at least five millennia. A mixture of folklore & observation preceded the earliest scientific inquiries. Fishing & trade commenced in southern Asia, between India & Sri Lanka & around the...http://books.google.co.in/books/about/Beyond_Price.html?id=leHFqMQ9mw8C&utm_source=gb-gplus-shareBeyond Price
