Lansing, Michigan, in two wood-lots of hardwood trees, from a cultivated field, under a willow tree on the campus of Michigan State College, from the bank of the Red Cedar River and from a grove of white pines; there was one collection from the bank of the Wabash River near Montezuma, Indiana. In each case, soil from the top three inches was placed in a large culture-dish and saturated with sterile, distilled water. After a few hours, the excess water was poured off and the cover of the dish put in place in order to prevent the rapid loss of moisture. The dishes were kept in the dim, natural light of the laboratory; the temperature varied from 80° to 90°, sometimes 94° F. The soils were kept for a period of six weeks. Any basidiocarps that appeared were collected at various stages of growth, killed, imbedded in paraffin, sectioned and stained.3 After the fruiting-bodies ceased to develop, the soil was stirred slightly, more water was added and then poured off. In one case a few new basidiocarps appeared.