Titus Livius (Livy), The History of Rome, Book 42
Evan T. Sage, Ph.D. and Alfred C. Schlesinger, Ph.D., Ed.

31. Thereupon a decree of the senate was passed that the consuls should with each other arrange or draw lots for the districts of Italy and Macedonia, and that the consul to whom Macedonia should fall should attack in war King Perseus and those who took his part, unless they rendered satisfaction to the Roman people. [2] It was voted to enroll four new legions, two for each consul. The special arrangement was made for the district of Macedonia that, although to the legions of the other consul five thousand two hundred infantry per legion were allotted in accordance with old custom, for Macedonia six thousand infantry¹ were ordered to be enrolled and for both forces three hundred cavalry in each legion. [3] Also the number for the force of allies was [p. 383]increased for the one consul; he was to take over to² Macedonia sixteen thousand infantry and eight hundred cavalry besides the six hundred cavalry under the command of Gnaeus Sicinius. [4] For Italy twelve thousand infantry and six hundred cavalry of the allies were judged sufficient. The following privilege was also granted to the Macedonian allotment, that the consul might at his discretion enroll former centurions and soldiers up to fifty years of age. [5] In connection with the tribunes of the soldiers, an innovation was made that year because of the Macedonian war, a change brought before the commons by the consuls in accordance with a resolution of the senate, namely, that tribunes of the soldiers should not be chosen by vote for this year but that the consuls and praetors [6??] should exercise their judgment and choice in appointing them.³ [7] Commands were divided among the praetors as follows: it was decided that the praetor whose lot it was to go where the senate determined should go to the fleet at Brundisium and there inspect the sailors; after discharging any who were unfit, he was to enroll replacements from among freedmen, and see to it that two-thirds should be Roman citizens and one-third allies. [8] It was voted to instruct the praetors who should draw Sicily and Sardinia, in order that provisions from these provinces might be conveyed to the fleet and legions, that they should impose a second tithe⁴ on the Sicilians and Sardinians, this grain to be transported to the army in Macedonia. [9] Sicily was drawn by Gaius Caninius Rebilus, Sardinia by Lucius Furius Philus, Spain by Lucius Canuleius, the jurisdiction over citizens by Gaius Sulpicius Galba, that over aliens by Lucius Villius Annalis; [p. 385]the lot placed Gaius Lucretius Gallus at the senate's⁵ disposal.