Holborn tube station is the only interchange between the London Underground Central and Piccadilly Lines.

With softer twitterings they hovered near, / Their dark eyes brighter for the brilliant notes / Swelling unwarbled in their glossy throats.

The morrow next apprear'd with purple hayre / Yet dropping fresh out of the Indian fount, / And bringing light into the heavens fayre […].

As far as political censorship of the drama went, being unblasphemously serious could be more offensive than being blasphemously silly.