Jeffries, David. "A Treatise on Diamonds and Pearls." 2nd Edition. London, 1751.
Jeffreys, J. Gwyn. "British Conchology." 5 Vols. London, 1862.
Jewels. "
The History of Jewels, and of the Principal Riches of the East and
West. Taken from the Relation of divers of the most famous Travellers
of our Age, attended with fair Discoveries conducing to the knowledge
of the Universe and Trade." * Printed by T.N., for Hobart Kemp, at the
sign of "The Ship," in the Upper Walk of the New Exchange. 1671.
King, G W. m.a. "The Natural History, Ancient and Modem, of Precious Stones and Gems." London, 1865.
. Kluge, Karl Emile. " Handbuch der Edelsteinkunde." Leipzig, 1860.
Lawson, W. J. "History of Banking." (Sir T. Gresham's Pearl). London, 1850.
Lewis, Dr. James. " On the colouring matter of Pearl-shells." Proceedings of the Academy of Natural Sciences of Philadelphia for 1866. p. 88.
Lewis, W. " Experimental History of the Materia Medica." 4th Edition. London, 1791.
Macgowan, D. T. m.d. " Pearls and Pearl-making in China." Journal of the Society of Atti. Vol. II., 1853, P· 72·
Marco Polo's Travels. Edited by Col. H. Yule, cb. London, 1871.
Markham, Clements R., Esq. "The Tinnevelly
Pearl Fishery." Journal of the Society of Arts. March 1, 1867. Vol. XV, p. 256.
MoEBius, Karl. " Die Echten Perlen." Hamburg, 1858.
