forms very true letters, and makes great calculations; then with his finger's end he casts up all that he has set down, performing multiplication, division, and all astronomical calculations, very exactly."
Words and Symbols.
29. A ridiculous instance of enforcing words by symbols, after the Oriental manner, occurs in Arabian history. When the people of Medina revolted against Yezid the first, they assembled in the mosque. One of them rose up, took off his turban, and flinging it on the ground, exclaimed, "I depose Yezid from the caliphate in the same manner as I cast away my turban." In an instant all who were near enough to understand him followed his example, and immediately a multitude of turbans were thrown down, and every one was repeating the same formula. In another corner of the mosque, a Moslem took off his slippers, and threw them away, and cried, "I depose Yezid
