0916. Polemics on the Origin of the Fatimid Caliphate. London, 1924. 232 pp. Karachi: Indus Publications, 1979. Distinguishes between pro- and anti-Fatimid sources related to their genealogy.
0917. Reviewed by W. Ivanow in J.B.B.R.A.S. n.s. II (1935): 71-72.
0918. Reviewed by H. A. R. Gibb in BSOAS VII (1933/35): 984-985.