Tables: 
     Table 1 : Edible  Crops Introduced by the Arabs
     Table 2 : Andalusi  Terms for Wheat
     Table 3 : Artisan  Nisbas of Andalusi Sufis (Thirteenth Century)
     Table 4 : Indicators  of Structural Gain or Loss in al-Andalus
     Table 5 : Medieval  Castilian Chemical Technology
     Table 6 : Arabisms  in Castilian Thought through the Thirteenth Century, by Category