Fig. 1
Gathering formic acid on the skin from an anthill in spring, Hälsingland, Sweden, 29 April 1956 (Photo Hilding Michelsson, Courtesy Hälsingslands Museum)
Fig. 1 | Journal of Ethnobiology and Ethnomedicine
Gathering formic acid on the skin from an anthill in spring, Hälsingland, Sweden, 29 April 1956 (Photo Hilding Michelsson, Courtesy Hälsingslands Museum)