Iddings, Joseph Paxson Igneous Rocks: Composition, Texture and Classification, Description and Occurrence; Volume 1 Iddings, Joseph Paxson The Problem of Volcanism Iddings, Joseph Paxson Igneous Rocks: Composition, Texture and Classification, Description and Occurrence; Volume 2 Bell, Bernard Iddings Right and Wrong After the War: An Elementary Consideration of Christian Iddings, Joseph Paxson The Problem of Volcanism