ABSTRACT
Once … the earth is conceived of as a porous mass capable
of supporting objects not only on its surface but also bur-
rowing and floating within its mass, then a new sense of
ground has been established and a new mobility achieved.
Once … the earth is conceived of as a porous mass capable
of supporting objects not only on its surface but also bur-
rowing and floating within its mass, then a new sense of
ground has been established and a new mobility achieved.