0601. "The Doctrines and History of the Ismaili Da'wa in Yaman as Based on Da'i Idris Imad'al Din's `Kitab Zahr ul-Ma'ani' and Other Works," Ph.D. diss., University of London, 1931.
0602. "The Life and Times of the Queen Saiyidah Arwa - The Sulayhid of the Yeman," J.R.C.A.S. XVIII (1931): 505 ff.
0603. "History of the Ismaili Da'wa and its Literature during the Last Phase of the Fatimid Empire," J.R.A.S. (1932): 126-136, 281-300.
0604. "Rasail Ikhwan al Safa' in the Literature of the Isma'ili Tayyibi Da'wa," Der Islam XX (1932): 281-300.
0605. "The Letters of Al-Mustansirbillah," B.S.O.A.S. VII (1933/35): 307-324.
0606. "The Rasail Ikhwan al-Safa in the Ismaili Literature," Der Islam (1936).
0607. "Some Unknown Ismaili Authors and their Works," J.R.A.S. (1937): 359-378.
0608. "A Compendium of Ismaili Esoterics," I.C. XI (1937): 210-220. Zahr ul-Ma'ani identifies the Ikhwan as-Safa as an Isma'ili work from internal evidence.
0609. On the Genealogy of the Fatimid Caliphs. Cairo: American University of Cairo, School for Oriental Studies, 1958.
0610. "Abu Hatim al-Razi," Revue Islamique (1960): 27-28.