The only reason assigned for the usual arrangement is founded upon the order of composition--Sallust having written the narrative of the Conspiracy before the account of the Jugurthine war. All the MS.S. too, have followed this order. Mr. Anthon, however, justly remarks that such an argument should weigh but little when positive utility is placed in the opposite scale. An enlarged commentary on the Jugurthine War, is another improvement in the present edition. There can be no doubt that the notes usually appended to this portion of Sallust were insufficient for the younger, if not for all classes of pupils, and when this deficiency is remedied, as in the present instance, by the labors of a man not only of sound scholarship, but of great critical and general acumen, we know how to value the services thus rendered to the student and to the classical public at large. We subjoin one or two specimens of the additional notes. Page 122. "_Ingenii egregia facinora_." "_The splendid exertions of intellect._" _Facinus_ denotes a bold or daring action, and unless it be joined with a favorable epithet, or the action be previously described as commendable, the term is always to be understood in a vituperative sense. In the present passage, the epithet _egregius_ marks the character of the action as praiseworthy. Page 122. "_Quippe probitatem, &c._" "Since it (i.e. fortune) can neither give, nor take away integrity, activity, nor other praiseworthy qualities." _Industria_ here means an active exercise of our abilities. We might add (with deference) to this note of Professor Anthon's, that _industria_, generally, has a more variable meaning than is usually given it, and that the word, in a great multiplicity of instances, where ambiguities in translation have arisen, has allusion to mental rather than to physical exertion. We have frequently, moreover, remarked its connection with that idea which the moderns attach to the term _genius_. _Incredibili industriâ_, _industriâ singulari_, are phrases almost invariably used in the sense we speak of, and refer to great mental power. Apropos, to this subject--it is remarkable that both Buffon and Hogarth directly assert that "genius is nothing but labor and diligence." Page 133. "_Vos in mea injuria_," _&c._ "_You are treated with contempt in the injustice which is done me._" _Despicere_ always implies that the person despising thinks meanly of the person despised, as compared with himself. _Contemnere_ denotes the absolute vileness of an object. We may here observe that we have no English equivalent to _despicere_. Page 135. "_Quod utinam_," _&c._ "_But would that I may see._" The use of _quod_ before many conjunctions, &c. merely as a copulative, appears to have arisen from the fondness of the Latin writers for the connexion by means of relatives.