A descriptive petrography of the igneous rocks : Vol 4 : the feldspathoid rocks / Albert Johannsen. Johannsen, Albert, 1871-1962. Igneous rocks. Petrology. Rocks Classification. QE461 .J6 552.1 JOD Includes bibliographical references and index Chicago : University of Chicago Press, 1938. 1938. 1938 Text v. : eng