History of Philosophy in Islam, by T.J. de Boer , at sacred-texts.com
Scanned at sacred-texts.com, August 2006. Proofed and formatted by John Bruno Hare. This text is in the public domain in the United States because it was published prior to January 1st, 1923. These files may be used for any non-commercial purpose provided this notice of attribution is left intact in all copies.