Bacci (Andrea)

De gemmis et lapidibus pretiosis. Francofurti, 1543. 8vo.

Balfour (Edward)

Article “Pearls.” The Cyclopædia of India. Third edition. London, 1885. 8vo.

Barbosa (Duarte)

A Description of the Coasts of East Africa and Malabar in the Beginning of the 16th Century. London, Hakluyt Society, 1866. 8vo.

Barrera (A. de), Madame

Gems and Jewels: Their History, Geography, Chemistry, and Ana. London, 1860. 8vo.

Barthema (Lodovico di)

The Travels of Lodovico di Varthema in Egypt, Syria, Arabia Deserta and Arabia Felix, in Persia, India, and Ethiopia, A.D. 1503 to 1508. London, Hakluyt Society, 1863. 8vo.