Here, therefore, we see the many limitations which arise to the modern doctrine upon the destructive agricultural consequences of the Roman corn trade. Rome may have prevented the Italian agriculture from expanding, but she could not have caused it to decline.[21] Now, let us see how far this Roman corn trade affected the Roman recruiting service. It is alleged that agriculture declined under the foreign corn trade, and that for this reason ploughmen declined. But if we have shown cause for doubting whether agriculture declined, or only did not increase, then we are at liberty to infer that ploughmen did not decline, but only did not increase. Even of the real and not imaginary ploughmen at any time possessed by Italy, too many in the south were slaves, and therefore ineligible for the legionary service, except in desperate intestine struggles like the Social war or the Servile. Rome could not lose for her recruiting service any ploughmen but those whom she had really possessed; nor out of those whom really she possessed any that were slaves; nor out of those whom (not being slaves) she _might_ have used for soldiers could it be said that she was liable to any absolute loss except as to those whom ordinarily she _did_ use as soldiers, and preferred to use in circumstances of free choice. These points premised, we go on to say that no craze current amongst learned men has more deeply disturbed the truth of history than the notion that 'Marsi' and 'Peligni,' or other big-boned Italian rustics, ever by choice constituted the general or even the favourite recruiting fund of the Roman republic. In thousands of books we have seen it asserted or assumed that the Romans triumphed so extensively chiefly because their armies were composed of Roman or kindred blood. This is false. Not the material, but the military system, of the Romans was the true key to their astonishing successes. In the time of Hannibal a Roman consul relied chiefly, it is true, upon Italian recruits, because he could seldom look for men of other blood. And it is possible enough that the same man, Fabius or Marcellus, if he had been sent abroad as a proconsul, might find his choice even then in what formerly had been his necessity. In some respects it is probable that the Italian rustic of true Italian blood was at that period the best raw material[22] easily procured for the legionary soldier. But circumstances altered; as the range of war expanded to the East it became far too costly to recruit in Italy; nor, if it had been less costly, could Italy have supplied the waste. Above all, with the advantages of the Roman military system, no particular physical material was required for making good soldiers. For these reasons it was that, after the Levant was permanently occupied by the Romans, where any legion had been originally stationed _there_ it continued to be stationed, and _there_ it was recruited, and, unless in