Offprint, with new title-page, page numbers and quire signatures, of an article on the Arabic calendar before Islam, by the Egyptian astronomer Mahmoud Effendi or Mahòmûd Ahòmad Hòamdî al- Falakî (1815-1885). Trying to reconstruct the calendar and chronology in use before the introduction of the Islamic Hijri calendar, Effendi studies the dates given for Muhammad's birth, the death of Muhammad's son Ibrahim, and the Hijra.
In very good condition, untrimmed with most of the bolts unopened. Cook, Islamic scholarly tradition, p. 45.