c) Chiasmus,[59] which consists in changing the relative order of words
  in two antithetical phrases; as,—­

    multos defendi, laesi neminem, many have I defended, I have injured no
    one;

    horribilem illum diem aliis, nobis faustum, that day dreadful to
    others, for us fortunate.

  d) Synchysis, or the interlocked arrangement.  This is mostly confined to
  poetry, yet occurs in rhetorical prose, especially that of the Imperial
  Period; as,—­

    simulatam Pompejanarum gratiam partium, pretended interest in the
    Pompeian party.

12.  Metrical Close.  At the end of a sentence certain cadences were avoided; others were much employed.  Thus:—­

  a) Cadences avoided.

    _ v v _ v or _ ; as, esse videtur (close of hexameter).

    _ v v v or _ ; as, esse potest (close of pentameter).

  b) Cadences frequently employed.

    _ v _ ; as, auxerant.

    _ v _ v ; as, comprobavit.

    _ v v v _ v ; as, esse videatur.

    v _ _ v _ ; as, rogatu tuo.

B. SENTENCE-STRUCTURE.

351. 1.  Unity of Subject.—­In complex sentences the Latin regularly holds to unity of Subject in the different members; as,—­

Caesar primum suo, deinde omnium ex conspectu remotis equis, ut aequato periculo spem fugae tolleret, cohortatus suos proelium commisit, Caesar having first removed his own horse from sight, then the horses of all, in order, by making the danger equal, to take away hope of flight, encouraged his men and joined battle.

2.  A word serving as the common Subject or Object of the main clause and a subordinate one, stands before both; as,—­

    Haedui cum se defendere non possent, legatos ad Caesarem mittunt,
    since the Haedui could not defend themselves, they sent envoys to
    Caesar;

    ille etsi flagrabat bellandi cupiditate, tamen paci serviendum putavit,
    although he was burning with a desire to fight, yet he thought he
    ought to aim at peace.

  a.  The same is true also

    1) When the Subject of the main clause is Object (Direct or Indirect)
    of a subordinate clause; as,—­

    Caesar, cum hoc ei nuntiatum esset, maturat ab urbe proficisci, when
    this had been reported to Caesar he hastened to set out from the city.

    2) When the Subject of a subordinate clause is at the same time the
    Object (Direct or Indirect) of the main clause; as,—­

    L. Manlio, cum dictator fuisset, M. Pomponius tribunus plebis diem
    dixit, M.  Pomponius, tribune of the people, instituted proceedings
    against Lucius Manlius, though he had been dictator.

3.  Of subordinate clauses, temporal, conditional, and adversative clauses more commonly precede the main clause; indirect questions and clauses of purpose or result more commonly follow; as,—­