70 For recent scholarship, see Corbin, Henry, En Islam iranien, 4 vols. (Paris: Gallimard, 1972–1973), vol. 4;Google ScholarSpiritual Body and Celestial Earth: From Mazdean Iran to Shi'ite Iran, Pearson, Nancy, ed. (Princeton, N.J.: Princeton University Press, 1977);Google ScholarMacEoin, Denis, “Ahsā'i, Shaikh Ahmad b. Zayn-al-Dīn,” Encyclopaedia Iranica;Google Scholar“From Shaykhism to Babism,” (Ph.D. Diss.: Cambridge University, 1979), ch. 2;Google ScholarRafati, Vahid, “The Development of Shaykhī Thought in Shī'ī Islam” (Ph.D. Diss.: University of California, Los Angeles, 1979);Google ScholarAmanat, Abbas, “The Early Years of the Bābī Movement: Background and Development” (Ph.D. Diss.: Oxford University, 1981), pp. 29–55.Google Scholar MacEoin has written the most about al-Ahsā'ī's Gulf background. Aspects of later Shaykhism are treated in Cole, J., “‘Indian Money’ and the Shi'i Shrine Cities of Iraq,” Middle Eastern Studies, 22, 4 (1986), 461–80;CrossRefGoogle ScholarCole, J. and Momen, M., “Mafia, Mob and Shiism: The Rebellion of Ottoman Karbala, 1824–1843,” Past and Present, 112 (08 1986), 112–43;CrossRefGoogle Scholar and Cole, J., Roots of North Indian Shi'ism in Iran and Iraq: Religion and State in Awadh, 1722–1859 (Berkeley and Los Angeles: University of California Press, forthcoming).Google Scholar