Contents: Preface; Arabia on the Eve Of Islam: The levying of taxes for the Sassanians in pre-Islamic Medina (Yathrib); King Ibn Ubayy and the qussas; Was Arabian idol worship declining on the eve of Islam?; A pre-Islamic endowment deed in Arabic regarding al-Wahida in the Hijaz; The emigration of 'Utba b. Abi Waqqas from Mecca to Medina. Muhammad And His Companions: Did the Quraysh conclude a treaty with the Ansar prior to the Hijra?; Were customs dues levied at the time of the Prophet Muhammad?; The Medinan wives of 'Umar b. al-Khattab and his brother, Zayd; The estates of 'Amr b. al-'As in Palestine: notes on a new Negev Arabic inscription; The preservation of Muhammad's letters. Arabian Tribes In Pre- and Early Islamic Arabia: Tribes in pre- and early Islamic Arabia: The Ridda; al-Namir ibn Qasit; Salul (Khuza'a); Salul (Hawazin); Sulaym; Taghlib; Tamim; Thaqif; 'Udhra. Bibliography; Addenda and corrigenda; Index.