I have also collated the thirteenth-century _Parisinus lat. 7993_, Heinsius' _codex Regius_. At ix 46 _P_ offers the correct _cernet_ for _credet_; _cernet_ is also the reading of _M_ after correction by a later hand and of the thirteenth-century _Gothanus membr. II 121_. At vi 7 _P_ alone of collated manuscripts agrees with _C_ in reading _praestat_ for the correct _perstat_. _P_ agrees with _L_ in reading _niuibus_ for the other manuscripts' _nubibus_ at v 5, _adeptum_ for _ademptum_ at vi 49, _signare_ for _signate_ at xv 11, and in the orthography _puplicus_ for _publicus_ at ix 48, ix 102, xiii 5, and xiv 16. The manuscript has many corruptions: a few examples are i 30 _igne_ for _imbre_, ii 18 _supremo_ for _suppresso_, iv 6 _pace_ for _parte_, vi 34 _uirtus_ for _uirus_, vii 15 _piacula_ for _pericula_, ix 42 _praeterea_ for _praetextam_, x 63 _in harena_ for _marina_, xiv 39 _conuiuia_ for _conuicia_, and xvi 24 _sacri_ for _scripti_. However, _P_ has no unique variants with any probability of correctness. To have given a full report of _P_ would have involved a considerable expansion of an already long apparatus, and I have cited the manuscript only occasionally, where a reading is only weakly attested by the other manuscripts. Titles _MF_ and _B2H2I2T2_ usually supply titles for the poems. As will be seen from the apparatus, there is considerable variation among the titles, and there is no reason to suppose that they form an authentic part of the transmitted text. The manuscript authority for the text of _Ex Ponto_ IV By and large the manuscripts of the fourth book of the _Ex Ponto_ offer a remarkably uniform text of the poems, and one which, considering the late date of the manuscripts, is in surprisingly good condition. I believe that all the manuscripts, with the exception of _G_, are descended from a single archetype. _B_ and _C_ are the best witnesses to the text of the archetype, although the other, more heavily contaminated and interpolated manuscripts are indispensable, since they correct the peculiar errors of _B_ and _C_. The present edition The apparatus of this edition is intended to be a full report of _BCMFHILT_ and of the fragmentary _G_; some reports are also given of _P_. It includes corrections by original and by later hands. When no manuscripts are specified for the lemma in an entry, the lemma is the reading for those manuscripts not otherwise specified. For instance, the entry deductum carmen] carmen deductum _M_ indicates that _deductum carmen_ is the reading of _BCFHILT_, while _carmen deductum_ is the reading of _M_.