Cinchona in the year 1851. Mr. [Thaddäus] Haenke mentioned the existence of cinchona bark on his visit to Yuracares in 1796". (Source: Exploration of the Valley of the Amazon, by Lieut. Lardner Gibbon, USN. Vol.II, Ch.6, pp. 146-47.) The cultivation of cinchona led from the 1890s to a decline in the price of quinine but the quality and production of raw bark by the Dutch in Indonesia led them to dominate world markets. The producers of processed drugs in Europe (especially Germany) however bargained and caused fluctuations in prices which led to a Dutch-led Cinchona Agreement in 1913 that ensured a
Tree of the Virgin Tree of the Virgin The Tree of the Virgin is a sycamore tree in the El Matareya suburb of Cairo, Egypt. According to local beliefs, the Virgin Mary and Saint Joseph stopped at El Matareya (then a small village) on the Flight into Egypt. Mary rested against the tree and a spring of water sprang up near it for Mary to wash Jesus. For many years its bark was taken by Christians in the belief that it had miraculous properties. It has been a place of pilgrimage for Coptic Christians for many centuries, who come to pray by it or