There would have been no more meaning in Poe's verse, if there had been less melody, if the poet had less devotedly studied the "book of iambs and pentameters."
"Inquiries and Opinions"
Brander Matthews
46. This verse, consisting, when entirely regular, of twelve syllables in six iambs, is the Alexandrine; said to have been so named because it was "first used in a poem called Alexander."
"The Grammar of English Grammars"
Goold Brown
They are composed of iambs and anapests.
"The Grammar of English Grammars"
Goold Brown