Lake States Aspen Report No. 16
U.S. Dept. of Agriculture, Forest Service, Lake States Forest Experiment Station
The use of aspen for the manufacture of excelsior is well established in the Lake States. The properties of the wood make it suitable for this general use, and there are adequate supplies available for increased productive capacity. The process of manufacturing excelsior is relatively uncomplicated, and the production equipment is simple and relatively low in cost. That the industry is not more extensive is obviously due to limitations in markets for excelsior. Expansion of the industry depends primarily upon the development of new uses and new products having excelsior as a base.
Garland, H. 1949. Aspen for excelsior. Unites States Department of Agriculture, Forest Service. Lake States Forest Experiment Station. Lake States Aspen Report No. 16.