Excerpt: ... The most beautiful are called virgin pearls, or paragons. They are formed alone in the tissue of the mollusc, are white, often opaque, and sometimes have the transparency of an opal; they are generally round or oval. The round are made into bracelets, the oval into pendants, and, being more precious, are sold singly. Those adhering to the shell of the oyster are more irregular in shape, and are sold by weight. Lastly, in a lower order are classed those small pearls known under the name of seed-pearls; they are sold by measure, and are especially used in embroidery for church ornaments." "But," said Conseil, "is this pearl-fishery dangerous?" "No," I answered, quickly; "particularly if certain precautions are taken." "What does one risk in such a calling?" said Ned Land, "the swallowing of some mouthfuls of sea-water?" "As you say, Ned. By the bye," said I, trying to take Captain Nemo's careless tone, "are you afraid of sharks, brave Ned?" "I!" replied the Canadian; "a harpooner by profession? It is my trade to make light of them." "But," said I, "it is not a question of fishing for them with an iron-swivel, hoisting them into the vessel, cutting off their tails with a blow of a chopper, ripping them up, and throwing their heart into the sea!" "Then, it is a question of