There are references to the quarrel in the writings of both.
Callimachus attacks Apollonius in the passage at the end of the _Hymn to Apollo_, already mentioned, also probably in some epigrams, but most of all in his _Ibis_, of which we have an imitation, or perhaps nearly a translation, in Ovid's poem of the same name.

On the part of Apollonius there is a passage in the third book of the _Argonautica_ (11.

927-947) which is of a polemical nature and stands out from the context, and the well-known savage epigram upon Callimachus.[1] Various combinations have been attempted by scholars, notably by Couat, in his _Poesie Alexandrine_, to give a connected account of the quarrel, but we have not _data_ sufficient to determine the order of the attacks, and replies, and counter-attacks.

The _Ibis_ has been thought to mark the termination of the feud on the curious ground that it was impossible for abuse to go further.

It was an age when literary men were more inclined to comment on writings of the past than to produce original work.
Literature was engaged in taking stock of itself.