Three Decades With Soil Fungi

To Dr. Charles Thorn, recently retired from his position as Microbiologist in the Bureau of Plant Industry, Soils, and Agricultural Engineering, U. S. Department of Agriculture, who has contributed in a large measure to the development of our knowledge of the fungi of the soil by encouraging many younger workers, including the writer of these lines, by helping them with the identification of the fungi that they have isolated from the soil, and by devoting his whole life to the advancement of the knowledge of fungi, notably those that inhabit soils, composts, and food products, this paper is gratefully dedicated.