MEGARIAN; MEGARIC a.
Belonging, or pertaining, to Megara, a city of ancient Greece. Megarian, or Megaric, school, a school of philosophy established at Megara, after the death of Socrates, by his disciples, and remarkable for its logical subtlety.
NIAGARA PERIOD n.
subdivision or the American Upper Silurian system, embracing the Medina, Clinton, and Niagara epoch. The rocks of the Niagara epoch, mostly limestones, are extensively distributed, and at Niagara Falls consist of about eighty feet of shale supporting a greater thickness of limestone, which is gradually undermined by t…