344. 76 sqq. 345. 88 sqq. 346. 220 sqq. 347. 96 sqq. 348. 178 sqq. 349. 400 sqq. 350. 333 sqq. 351. 294. 352. So Ellis (_Corp. Poet. Lat._, vol. ii. pref.); Baehrens, _P. L. M._ ii. pp. 29 sqq. 353. Serv. _ad Verg. Aen._ praef. Donatus, _vita Verg._, p. 58 R ('Scripsit etiam de qua ambigitur Aetnam'). 354. Sen. _Nat. Quaest._ iii. 26. 5. He also wrote in verse on philosophical subjects; cp. Sen. _Ep._ 24, 19-21. 355. So Wernsdorf, von Jacob, Munro (edd.), Wagler _de Aetna quaest. crit._, Berlin, 1884. 356. Sen. _Nat. Quaest._ iv. 2. 2. 357. Sen. _Ep._ 79. 5. 358. So many Italian scholars of sixteenth and seventeenth centuries, among them Scaliger. 359. Cornelius Severus wrote a poem on the Sicilian War of Octavian and Sext. Pompeius; cp. Quint, x. l. 89. 360. Cp. _Nat. Quaest._ iii. 16. 4, _Aetna_, 302 and 303. But this may be due to the fact that both Seneca and the author of _Aetna_ get their information from the same source, perhaps Posidonius; cp. Sudhaus, introd. to his edition, p. 75. 361. It is not improbable that in 293 sqq. the poet refers to the mechanical Triton shown at the Naumachia on the Fucine Lake at a festival given by Claudius in honour of Nero's adoption in 50 A. D. 362. 425-34. 363. Baehrens would put the lower limit at 63 A. D., the year in which severe earthquakes first indicated the reviving activity of Phlegraean fields. But earthquakes, though often caused by volcanic action, do not necessarily produce volcanoes. 364. viii. 16. 9; 10. 185. 365. iii. 3. 3 'his certe temporibus Nomentana regio celeberrima fama est illustris, et praecipue quam possidet Seneca, vir excellentis ingenii atque doctrinae'. He is quoted by Pliny, not infrequently. Columella was an old man when he wrote; cp. 12 ad fin. 'nec tamen canis natura dedit cunctarum rerum prudentiam'. 366. Cp. _C.I.L._ ix. 235 'L. Iunio L. F. Gal. Moderato Columellae Trib. mil. leg. VI. Ferratae'. That this refers to the poet is borne out by two facts. (1) Gades belonged to the Tribus Galeria. (2) At this date the legio VI. Ferrata was stationed in Syria; cp. Col. ii. 10. 18 'Ciliciae Syriaeque regionibus ipse vidi'. 367. Cp. i. 1. 7. He speaks as a practical farmer; cp. ii. 8. 5; 9. 1; 10. 11; iii. 9. 2; 10. 8, &c. He writes primarily for Italy, not for Spain; cp. iii. 8. 5. 368. Cp. x. praef.: also ix. 16. 2, which tells us that Gallio, Seneca's brother, had added his entreaties. 369. xi. praef.