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Appendix
319
Coutance. A Chapter, " La Perle " in " Diamants et Pierres Précieuses." By E. Jannettaz, E. Vanderheym, E. Fontenay and A. Coutance. Paris, 1881.
Dall, W. H. " Pearls and Pearl Fisheries." American Naturalist. Vol. XVII., 1883, p. 579, and p. 731.
DiEULAFAiT, Louis. "Diamants et Pierres Précieuses." (Bibliothèque des Merveilles). Paris, 1871.
Emanuel, Harry, " Diamonds and Precious Stones." London, ist Edition, 1865; 2nd Edition, 1867.
Garner, Robert. " On the Pearls of the Conway River, North Wales." British Association Report for 1856. Part II., p. 92.
Gibson, John. " Ordnance Gazetteer of Scotland." Edited by Francis H. Groome. 3 Vols., 1885.
Hague, W. F. " On the Natural and Artificial Pro­duction of Pearls in China." Journal of the Royal Asiatic Society. Vol. XVI., 1856, Part II., Art. XV.
Herschel, Sir J. F. W. " On certain Optical Pheno­mena exhibited by Mother-of-Pearl." Edinburgh Philosophical Journal. 1820. Vol. II. p. 114.
Hessling, Dr. Theodore Von. "Die Perlmuscheln und ibre Perlen, naturwissenschaftlich und geschicht­lich; mit Berücksichtigung der Perlengewässer Bayerns." Leipzig, 1859.
Home, Sir Everard, Bart. "On the Production and Formation of Pearls." Philosophical Transactions. 1826. Part III.
Hutchinson, William. " The History of the County of Cumberland." Carlisle, 1794.
Irving, Theodore. " Conquest of Florida." London,
1835· Jackson, J. R. " Minerals and their Uses." London, 1849.