At a discussion in New York, a gentleman observed that one of the family of Australian gum trees, the sweet gum, was already prolific in the South. The Sweet Gum is the Liquidambar styraciflua, almost useless for anything but poor fuel we believe. The gum of Australia is the Eucalyptus, of a family having no relationship to the sweet gum. It shows the danger of confusion in the popular mind of popular names.