370. He also wrote a treatise against astrologers (cp. xi. 1. 131) and a treatise on religious ceremonies connected with agriculture (cp. ii. 21. 5). This latter work was perhaps never completed (cp. ii. 21. 6). In any case both treatises were lost. There survives a book on arboriculture which is not an isolated monograph, but portion of a larger work, at least three books long, for it alludes to a 'primum volumen de cultu agrorum' (ad init.). It probably consisted of four books, since Cassiodorus (_div. lect_. 28) speaks of the sixteen books of Columella. 371. siderei Maronis, 434. 372. Cp. esp. 196 sqq. 373. Cp. 130 sqq., 320 sqq., 344 sqq. 374. 102 sqq. 375. 45-94. 376. 29-34. 377. 196 sqq. 378. Tac. _Ann._ xii. 58. 379. M. Haupt, _Opusc._ i. 391; Lachm. _Comm. on Lucret._ 1855, p. 326 Schenkl (ed. Calp. Sic., p. ix). 380. Or _de laude Pisonis_. See Baehrens, _Poet. Lat. Min._ iii. 1. For the question of authorship see p. 159. 381. It was long believed that there were eleven, but the last four eclogues of the collection are shown by their style to be of later date, and there can be little doubt that the MSS. which attribute them to Nemesianus of Carthage are right. We know of a Nemesianus who lived about 290 A.D. and wrote a _Cynegetica_, a portion of which survives. Comparison with these four eclogues shows a marked resemblance of style. 382. Verg. _Ecl._ vii. 1: forte sub arguta consederat ilice Daphnis, compulerantque greges Corydon et Thyrsis in unum, Thyrsis oves, Corydon distentas lacte capellas, ambo florentes aetatibus, Arcades ambo, et cantare pares et respondere parati. Calp. ii. 1: intactam Crocalen puer Astacus et puer Idas, Idas lanigeri dominus gregis, Astacus horti, dilexere diu, formosus uterque nec impar voce sonans. The conclusion is borrowed from Vergil, _Ecl._ iii. 108: non nostrum inter vos tantas componere lites. et vitula tu dignus et hic et quisquis amores aut metuet dulces aut experietur amaros. claudite iam rivos, pueri; sat prata biberunt. Calp. ii. 95-100: 'iam resonant frondes, iam cantibus obstrepit arbos: i procul, o Doryla, rivumque reclude canali et sine iam dudum sitientes irriget hortos' vix ea finierant, senior cum talia Thyrsis, 'este pares ...' 383. Cp. also v. 50 sqq. 384. See Baehrens, _Poet. Lat. Min._ vol. iii. p. 60. The first poem is unfinished, the award of Midas being missing. 385. Bücheler, _Rhein. Mus._ xxvi. p. 235. 386. So Bücheler, loc. cit. _respexit_ is a mere conjecture: _corrumpit_, the MS. reading, is meaningless, and no satisfactory alternative has been suggested. The lines may merely refer to Apollo, but _et me_ suggests strongly that Ladas retorts, 'I, too, have Caesar's favour.' Cp. _L._ 37, where _hic vester Apollo est!_ clearly refers to Nero. 387. In a MS. at Lorsch, now lost; but used by Sechard for his edition of Ovid, Basle, 1527.