. The commercial products of the sea or, : Marine contributions to food, industry and art. Fisheries; Seafood; Commercial products. Pearls and the Pearl Fisheries. 411 years old ; from the fifth to the sixth year, however, the pearl oyster doubles in value, and again doubles should it survive to the seventh year. If removed too soon the pearls are imperfectly formed, and, on the other hand, if allowed to remain too long, the fish dies and is lost. The Ceylon pearl fishery usually lasts for a month or Fig. I. Meleagrina margaritifera, the mother-of-pearl shell. 2. Aiiodonta herculea, the C
. The commercial products of the sea or, : Marine contributions to food, industry and art. Fisheries; Seafood; Commercial products. Pearls and the Pearl Fisheries. 411 years old ; from the fifth to the sixth year, however, the pearl oyster doubles in value, and again doubles should it survive to the seventh year. If removed too soon the pearls are imperfectly formed, and, on the other hand, if allowed to remain too long, the fish dies and is lost. The Ceylon pearl fishery usually lasts for a month or Fig. I. Meleagrina margaritifera, the mother-of-pearl shell. 2. Aiiodonta herculea, the Chinese pearl mussel. six weeks, commencing about the second week in March, and is carried on to the middle or end of April, when the sea is usually calm and the currents least perceptible. The following is from an account of the fishery which I pub- lished in my " Technologist," vol. ii. p. 546 :—" The boats employed are divided into two squadrons, each consisting. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Simmonds, P. L. (Peter Lund), 1814-1897. New York : D. Appleton and company
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectfisheries, bookyear18
