'Local colour'in a novel or play is feature which

''London''

I wander thro'' each charter''d street

Near where the charter''d Thames does flow,

And mark in every face i meet

Marks of weakness, marks of woe



In every cry of every Man

In every infant''s cry of fear,

In every voice, in every ban,

The mind-forged manacles i hear.



How the chimney-sweeper''s cry

Every black''ning Church appalls;

And the hapless Soldier''s sigh

Runs in blood down Palace walls.



But most thro'' midnight streets i hear

How the youthful Harlot''s curse

Blasts the new born infant''s tear,

And blights with plagues the marriage hearse.

The stanza form in ''London'' is referred to as