Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
From: The History of Rome, by Theodor Mommsen
Translated with the sanction of the author by William Purdie Dickson
In a short time a Roman army was on African ground, and marching upward along the Bagradas (Mejerdah) advanced into the Numidian kingdom, where the towns most remote from the seat of the royal power, such as Great Leptis, already voluntarily sent in their submission, while Bocchus king of Mauretania, although his daughter was married to Jugurtha, offered friendship and alliance to the Romans. Jugurtha himself lost courage, and sent envoys to the Roman headquarters to request an armistice. The end of the contest seemed near, and came still more rapidly than was expected.
The treaty with Bocchus broke down, because the king, unacquainted with Roman customs, had conceived that he should be able to conclude a treaty so advantageous for the Romans without any gratuity, and therefore had neglected to furnish his envoys with the usual market price of Roman alliances. Jugurtha at all events knew Roman institutions better, and had not omitted to support his proposals for an armistice by a due accompaniment of money; but he too was deceived. After the first negotiations it turned out that not an armistice merely but a peace was purchaseable at the Roman head-quarters. The royal treasury was still well filled with the savings of Massinissa; the transaction was soon settled.
The treaty was concluded, after it had been for the sake of form submitted to a council of war whose consent was procured after an irregular and extremely summary discussion. Jugurtha submitted at discretion; but the victor was merciful and gave him back his kingdom undiminished, in consideration of his paying a moderate fine and delivering up the Roman deserters and the war elephants (643); the greater part of the latter the king afterwards repurchased by bargaining with the individual Roman commandants and officers.
Do you see any typos or other mistakes? Please let us know and correct them
Reference address : https://www.ellopos.net/elpenor/rome/4-04-rule-restoration.asp?pg=35