Poros (Greek: Πόρος) is a small Greek island-pair in the southern part of the Saronic Gulf, at a distance about 48 km (32 miles) south from Piraeus and separated from the Peloponnese by a 200-metre wide sea channel. Its surface is about 31 square kilometres (12 square miles) and it has 4,000 inhabitants. The ancient name of Poros was Pogon.

(13) -- local limestone of a certain pale, spongy quality (Vermeule, 386) Sample Image (Lesson 20)