Epistles of the Brethren of Purity. On the Natural Sciences: An Arabic Critical Edition and English Translation of EPISTLES 15-21 By Carmela Baffioni, Ed. And Trans. (Oxford: Oxford University Press in Association With the Institute of Ismaili Studies, 2013. 969 pages.). AJIS 2014, 31 (2), 125-128. https://doi.org/10.35632/ajis.v31i2.1046.