Meantime, the French Emperor became probably sensible that peace with England was the surest ground upon which he could secure his throne. In the month of April, 1810, some attempt at obtaining terms of pacification had been made during the mission of Mr. Mackenzie, who was sent to Morlaix as agent on the part of the British Government. It had been not the least cruel peculiarity of this inveterate war, that no cartel for exchange of prisoners had been effected on either side, and, of course, that those unhappy persons whom chance had thrown into the power of the enemy, had no visible alternative but to linger out their lives in a distant and hostile country, or at least remain captives till the conclusion of hostilities, to which no one could presume to assign a date. The original impediment to such an exchange, which has in all civilized countries been considered as a debt indispensably due to soften the rigours of war and lessen the sufferings of its victims, was a demand of Napoleon that the persons possessing no military character, whom he had made prisoners contrary to the law of nations at the commencement of hostilities, should be exchanged against French sailors and soldiers. The British ministers for a long time resisted so unusual an application, to which policy, indeed, forbade them to accede. At length, however, the sufferings of individuals, and of their families, induced the British government to allow the French Emperor the advantage of his oppressive act in detaining these unfortunate persons, and agree that they should be included in the proposed cartel. But when the commissioners met at Morlaix, Mr. Mackenzie found himself as far from approaching an agreement as ever. The number of French prisoners in Britain was more by many thousands than that of the British in France; and Buonaparte, who seldom made a bargain in which he did not secure the advantage to himself, insisted that the surplus of French prisoners should be exchanged for Germans, Spaniards, Portuguese, or others who should be captive in France. This was readily agreed to, so far as regarded foreign troops in British pay; but it was equally unreasonable and contrary to usage to require that we should restore to France her native subjects, whose services she might use to augment her military force, while we received in exchange foreigners, unconnected with us by service or allegiance, and who, perhaps, when set at liberty, might be as apt to join the French ranks, as those of the nation in whose name they had obtained freedom.