PROFESSOR GORDON'S RULE OF EVOLVING BYROGRAPHIC SYSTEMS



   While byrographic systems are typically encountered in substrata of earthy
   or mineral matter in concreted state,  discrete substrata elements
   occasionly display a roughly spherical configuration which, in
   presence of suitable gravitational and other effects, lends itself to
   combined translatory and rotary motion  One notices in such caes an
   absence of the otherwise typical accretion of byrophyta; we therefore
   conclude that A ROLLING STONE GATHERS NO MOSS.