In his attack on Milton’s Latin poems Salmasius accuses him of bungling them by “false quantities,” that is, by incorrectly shortening long vowels. He further accuses him of the converse mistake, illicit longs for shorts, in a prosody which works by vowel-duration and not (like English verse) by word-accent.2 And Milton makes “many other errors.” How accurate is this stricturing? The present enquiry addresses each particular rebuke, then the general issue of “correctness” in Neo-Latin.