Appendix. 3 1 9 



CouTANCE. A Chapter, " La Perle " in " Diamants 

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DiEULAFAiT, Louis. "Diamants et Pierres Precieuses." 

 (Bibliotheque des Merveilles). Paris, 187 1. 



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 IL, p. 92. 



Gibson, John. " Ordnance Gazetteer of Scotland." 

 Edited by Francis H. Groome. 3 Vols., 1885. 



Hague, W. F. " On the Natural and Artificial Pro- 

 duction of Pearls in China." yournal of the Royal 

 Asiatic Society. Vol. XVI., 1856, Part II., Art XV. 



Herschel, Sir J. F. W. " On certain Optical Pheno- 

 mena exhibited by Mother-of-Pearl." Edinburgh 

 Philosophical yournal. 1820. Vol. II. p. 114. 



Hessling, Dr. Theodore Von. "Die Perlmuscheln und 

 ibre Perlen, naturwissenschaftlich und geschicht- 

 lich; mit Beriicksichtigung der Perlengewasser 

 Bay ems." Leipzig, 1859. 



Home, Sir Everard, Bart. "On the Production and 

 Formation of Pearls." Philosophical Transactions. 

 1826. Part in. 



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. 



