136 University of California Publications in History tion of the insurgent colonies, he said, the limit might be set at the Sabine River, sub spe rati. This was in truth no innovation, since the Sabine had been the effective line for many years, and the official boundary of Louisiana since its admission to statehood in 1812. The diplomats were forced, under the circumstances, sim- ply to acknowledge existing conditions of occupation. EBVING'S LAST Errors Before Onis had a chance to act upon his latest instructions, there - was a further exchange of views between Pizarro and Erving at Madrid. The discussion was futile but is of interest in showing the gradual wearing down of the Spanish diplomatic defense. It will be remembered that Onis in March, 1818, had transferred the cen- ter of negotiation to the Spanish capital. Pizarro conferred with Erving immediately upon the receipt of Onis' despatch. Pizarro began the discussion with Erving by saying that the two chief obstacles to the negotiation were the United States' insistence upon the line of the Colorado River, and the demand for indemnity from Spain for the spoliations by French vessels in Spanish ports." The subsequent debate, however, was primarily upon the first of these problems. Much futile conversation ensued as the two men argued the relative merits of the territories concerned, in the southwest and the southeast. Erving deprecated the value of the Floridas, whereas Pizarro magnified the munificence of the King in offering to cede them. Erving firmly maintained his insistence on the Colorado River limit, and soon added the request that Spain ratify the Claims Convention of 1802. At the end of June the Spanish secretario informed his adversary that his government had finally deter- mined not to accept the Colorado River limit, and that it would not approve the convention unless the claim for indemnification for the French spoliations be definitely abandoned by the United States. In such an impasse the negotiation lapsed for a time, and Erv- ing lost all hope of reaching a settlement." He was anxious to leave Madrid, both because of his health and because of his dislike for his mission. Like Onis, he coupled his complaint of illness with a de- nunciation of the climate. The Madrid summers troubled him as much asthe Washington winters did Onfs.