From Catullus we may possibly infer that the _Chronica_ were written before B.C. 63[31]; _unus Italorum_ would imply that they were written before the similar works of Varro and Atticus. 3. _Exempla_, in at least five Books, treating of the history of Roman manners. Gell. vi. 18, 11, 'Cornelius Nepos in libro exemplorum quinto.' 4. _Life of the elder Cato_. Nep. _Cat._ 3, 5, 'Huius de vita et moribus plura in eo libro persecuti sumus, quem separatim de eo fecimus rogatu T. Pomponii Attici. Quare studiosos Catonis ad illud volumen delegamus.' 5. _Life of Cicero_, written after his death (B.C. 43). Gell. xv. 28, 2, 'in primo librorum, quos de vita illius composuit.' 6. _A geographical work_, referred to by Pliny, _N.H._ v. 4, etc. All the above works are lost. 7. _De Viris Illustribus_, his last work, was dedicated to Atticus (praef. i); an addition to the life of Atticus was made after his death. _Att._ 19, 1, 'Hactenus Attico vivo edita a nobis sunt. Nunc, quoniam fortuna nos superstites ei esse voluit, reliqua persequemur.' From _Att._ 12, 1-2, we may conclude that the publication took place between B.C. 35 and 33. The addition to the life of Atticus was written at some time between B.C. 31 and 27, as in _Att._ 19, 2, Octavian is called _imperator_, but not _Augustus_, a title which he received in the last-mentioned year. The work contained at least sixteen Books: cf. Charis. _G.L._ i. 141 (ed. Keil), 'Cornelius Nepos illustrium virorum libro xvi.'; and was divided into sections of two Books each, the first on distinguished foreigners, the second on distinguished Romans of the same class. We possess the book _de excellentibus ducibus exterarum gentium_; from _de historicis Latinis_ the lives of Cato the Censor and Atticus, and fragments of the letters of Cornelia, mother of the Gracci. There are also mentioned the books _de regibus_ (Nep. _de reg._ 1, 1; 3, 5); _de excellentibus ducibus Romanorum_ (Nep. _Hann._ 13, 4); _de historicis Graecis_ (Nep. _Dion,_ 3, 2); _de poetis_ (Sueton. p. 31 R.); _de grammaticis_ (Sueton. p. 103 R.). The work probably dealt also with _iurisconsulti_, _oratores_, and _philosophi_. The book is biographical rather than historical, and is designed to compare foreigners with Romans, and to please, as well as instruct, those ignorant of Greek culture. _Pel._ 1, 1, 'Vereor ... ne non vitam eius enarrare, sed historiam videar scribere.' _Hann._ 13, 4, 'Tempus est ... Romanorum explicare imperatores, quo facilius collatis utrorumque factis, qui viri praeferendi sint, possit iudicari.' _Pel._ 1, 1, 'Medebor cum satietati tum ignorantiae lectorum.' _Praef._ 2, 'Hi erunt fere, qui expertes litterarum Graecarum,' etc.