from The Bridge(published: 1930), poet's age: 31

I think of cinemas, panoramic sleights
With multitudes bent toward some flashing scene
Never disclosed,
sleights n.
1. Deftness; dexterity.
2. A clever or skillful trick or deception; an artifice or stratagem.

[Middle English, sleahthe, from Old Norse slgdh,
  from slgr, sly.]