In a review of the superb Ronald Melville translation of Lucretius's De Rerum Natura (I offer here a new translation of the title: Of Things' Nature),Richard Jenkynsgives an explanation of why this work was written in verse. (He repeats this explanation in his introduction to Alicia Stalling's 2007 translation.):
My reading of Clare's vowelless letter at the launch for Barbaric Vast & Wild: Poems for the Millennium Vol. V, edited by Jerome Rothenberg and John Bloomberg-Rissman, at The Poetry Project, Oct. 14, 2015.