18. See the Theodosian Code, 1. ix. tit. 14, ad legem
Corneliam de Sicariis, leg. 3, and the Code of Justinian, 1.
ix. tit. viii. ad legem Juliam de Majestate, leg. 5. The
alteration of the title, from murder to treason, was an
improvement of the subtle Tribonian. Godefroy, in a formal
dissertation, which he has inserted in his Commentary,
illustrates this law of Arcadius, and explains all the
difficult passages which had been perverted by the
jurisconsults of the darker ages. See tom. iii. p. 88-111,