DRILLED PEARLS.—Pearls with one hole for setting on peg, or quite through the centre for stringing. Chinese drill two or three small holes half way between circumference and bottom, for holding-wires. EGG PEARLS.—Ovoid: shaped like an egg. FLAT.—In connection with price quotation means, price per grain regardless of size. FRESH-WATER PEARLS.—Pearls taken from inland streams. GREEN EARS.—Shell of Haliotis having green mother-of-pearl lining. HALF PEARLS.—Round pearls sawed in half. HELMET.—Diving head-gear. LINGAHS.—Pearl oyster shells from the Arabian Sea and others of similar size and quality. MADRAS PEARLS.—Fine white pearls from the Ceylon fisheries, so called because marketed principally in that city. MANUL.—Loose or soft sand sea bottom (Ceylon). MULTIPLE.—Price of pearls subject to the multiple of weight. MUSSEL-EGG.—Name given to pearls by Tennesseans. NACRE.—The substance of which pearls and the lining of pearl-shells consists. NAKED DIVING.—Diving without any appliances. ORIENT.—As applied to pearls, the luster of the skin. ORIENTAL PEARLS.—Generally, pearls from salt water; specifically, pearls from the Indian Seas. OUNCE PEARLS.—Poor grades sold by the ounce. PAAR.—Ceylon name for rock or hard bottom oyster-bed. PEARLER.—One who fishes for mussels for the pearls. PEAR-SHAPE.—Shaped like a pear; obovoid. PEELER.—A pearl with an imperfect skin, the removal of which would improve the pearl. RED-EARS.—Abalone shell with pearly red interior. ROSE-PEARLS.—Pink, iridescent, fresh-water baroques. SEED-PEARLS.—Very small round pearls. SLUGS.—Nacreous excrescences from the Unio. SKIN.—As applied to pearls, the outer layer of nacre. SQUARE.—Method of reckoning the cost of a pearl of any size at a lot price, by the square of price given, with the grain as a unit. STRAWBERRY-PEARLS.—Large, pink, iridescent and lustrous baroques, fairly regular in shape, with the appearance of being thickly sanded under the nacre. SWEET-WATER PEARLS.—Pearls from fresh-water. TRUE-PEARLS.—Pearls formed of nacre as distinguished from similar formations which are not nacreous. TWINNED-PEARLS.—Pearls enveloped together in one or more layers of nacre. WHITE-SHELL.—Pearl-oyster shells with nacre white to the edge. YELLOW-SHELL.—Pearl-oyster shells with yellowish nacre. GENERAL CHARACTERISTICS OF PEARLS AND SHELLS FROM THE VARIOUS FISHERIES ARABIAN SEA.—Pearls have fine orient, but the color inclines to yellow. Shells are larger than those of Ceylon but of little value for mother-of-pearl: iridescent, black-edge m. of p.; known as Lingahs. AROE.—Pearls usually good orient; many of irregular shape. Shells are of medium size, black-edge and iridescent. AUCKLAND.—Pearls white, but not remarkable for luster. Shells, medium size, black-edge m. of p. AUSTRALIA.—Pearls of Australia generally are of good color, but not as lustrous as those of other sections.