What reason might Edgar Allan Poe have included and acirc 128 156The Haunted Palace 157 in Fall of the House Usher a?

The correct use of the accent grave in French is: ` (apostrophe). An accent circonflexe is used to indicate a different pronunciation of the vowel a or e.

Therefore, if there was a line in French in the story, the proper way to reproduce the accent grave would be `, not "and acirc".

However, there are no instances of the poem "The Haunted Palace" in Poe's piece "The Fall of the House of Usher".