First Published in 1968. This works seeks to be neither controversial nor polemical, the author intends to present an entirely objective account of the beliefs and institutions of Islam. Lammens describes Hejaz as the cradle of Islam, where Western Arabia in its mountainous complexity holds as the primary focus in this title. Discussing Islam as having been formed by the evolution of thirteen centuries, the details supplied within enable the reader to extensively follow its historical development.

This is a reprint of the late professor's work on Jamal al-Din al-Afghani (1838-1879) and his well-known Egyptian discipline Muhammad 'Abduh (1849-1905), the Mufti of Egypt. These two men have generally been seen as devout Muslims who helped rejuvenate their religion which had been stagnating for many centuries.
The author provides evidence which suggests that these two men were involved in Islam's small and silent atheist movement which had a subversive rather than constructive influence on mainstream Islam. He also examines Afghani's and 'Abduh's political activities in Egypt before and during 'Urabi's revolt of 1870 and in the process throws new light on Egypt's politics during this turbulent decade. He argues that Afghani could have been a Russian agent, possibly a French one and probably offered his services to the British.