Memoirs and sermons of Wm. J. Armstrong / edited by Hollis Read.

http://www.archive.org/details/memoirsandsermon00armsiala

Islam and missions : being papers read at the Second Missionary Conference on behalf of the Mohammedan World at Lucknow, January 23-28, 1911 / edited by E.M. Wherry, S.M. Zwemer, C.G. Mylrea.

http://www.archive.org/details/islamandmissions012033mbp