... A sacred tree is usually found in the vicinity of the shrines, which may be divided into six classes: (1) ancient sacred places; (2) sites founded upon Christian tradition and often bearing Christian names (Boulos, Paul; Boutros, Peter; Metta, Matthew); (3) unidentified names: Camil, Anin, Balian, Nouran, the sheikh Zeitun (olive) with his mother, and the sheikh Waheb (giver) with his sister Sadeh; (4) the companions of the Mohammed, and celebrated sheikhs of later centuries; (5) saints described by epithets, e.g., "the Persian," "Madianite," "giver of rain," "charmer of serpents;" and finally, (6) sheikhs bearing ordinary names: Abraham, David, Joseph, Ali, Suleiman, Ahmed, etc... (Quarterly Statement, Palestine Exploration Fund, 1906)