University of Minnesota Ph.D. dissertation. 1917. Major: Forestry. 1 computer file (PDF); 72 pages. [476-547]. Reprinted in Ecology.
Secondary Succesion in the Climax Forest Formations of Northern Minnesota.
Retrieved from the University of Minnesota Digital Conservancy,
Content distributed via the University of Minnesota's Digital Conservancy may be subject to additional license and use restrictions applied by the depositor.