Agatha: Girl of Mystery is a fanciful and fabulous new mystery series about a headstrong girl detective who jets off on exotic and international adventures with the help of her hulking bodyguard and loyal cat named, aptly, Watson. In this second book, Agatha Mistery heads to India to help out her uncle Raymond—a wildlife photographer and a snake charmer. This time Agatha and her uncle are on a mission to find the famous pearl of Bengal, and ancient artifact that was stolen from the temple of the Hindu goddess Kali.

Contrary to a generally held view that pearls are found by chance in oysters, almost all are now produced from farms. This book is a comprehensive treatment of all aspects of the biology of pearl oysters, their anatomy, reproduction, genetics, diseases, etc. It considers how they are farmed from spawning and culturing larvae in hatcheries to adults in the ocean; how various environmental factors, including pollution affect them; and how modern techniques are successfully producing large numbers of cultured pearls. This is the ultimate reference source on pearl oysters and the culture of pearls, written and edited by a number of scientists who are world experts in their fields. - Comprehensive treatment of pearl oyster biology and pearl culture - Written by the top world authorities - Highly illustrated and figured - Of practical relevance to a broad readership, from professional biologists to those involved in the practicalities and practice of pearl production

Man has been intrigued by the origin of pearls, sensitive to their beauty, and convinced of their medicinal value for at least 5 cent. A mixture of folklore and observation preceded the earliest scientific inquiries. Fishing and trade commenced in S. Asia, between India and Sri Lanka and around the Persian Gulf. In W. and Central Europe, Inner Asia and China, and N. Amer. Freshwater pearls were probably known and treasured before those of marine origin. A refined nomenclature points to a long familiarity with etymologically related words for 'pearl'. Pearls were prominent among the luxury products of world trade and were high among the objectives of expeditions to the eastern and western Tropics. Illustrations.