Licentia poetica discuss'd : Or, The true test of poetry. Without which it is impossible to judge of, or compose, a correct English poem. To which are added, critical observations on the principal, antient and modern poets. viz. Homer, Horace, Virgil, Milton, Waller, Cowley, Dryden, &c. as frequently liable to just censure. A poem. By W. Coward, Coll. Med. Lond. M.D.