[Fr.] A drain or passage to carry off sewage in cities. In Paris the sewers contain telegraph and telephone wires, compressed air or gas-pipes, etc. The ancient sewer (Cloaca Maxima) of Rome was large enough to allow a loaded wagon of hay to pass through. Sewerage has become a very important part of modern city administration.

DOUBLE TRAP FOR SEWER.

DOUBLE TRAP FOR SEWER.