Nevertheless, the seeming cordiality between the magistrates of the capital and the partly exiled Captain General, did not long continue. Occasions arose for difference of opinion and for disputes of even a more bitter character, until, at length, he turned his back on the glorious valley,--the scene of his noblest exploits,--forever, and took up his abode in his town of Cuernavaca, which, it will be recollected, he captured from the Aztecs before the capital fell into his hands. This was a place lying in the lap of a beautiful valley, sheltered from the north winds and fronting the genial sun of the south, and here he once more returned to the cares of agriculture,--introducing the sugar cane from Cuba, encouraging the cultivation of flax and hemp, and teaching the people the value of lands, cattle and husbandry which they had never known or fully appreciated. Gold and silver he drew from Zacatecas and Tehuantepec; but he seems to have wisely thought that the permanent wealth and revenue of himself and his heirs would best be found in tillage. Our limits will not permit us to dwell upon the agricultural, mineral and commercial speculations of Cortéz, nor upon his various adventures in Mexico. It is sufficient to say that he planned several expeditions, the most important of which, was unsuccessful in consequence of his necessary absence in Spain, whither he had been driven, as we have seen, to defend himself against the attacks of his enemies. Immediately, however, upon his return to Mexico, he not only sent forth various navigators, to make further discoveries, but departed himself for the coast of Jalisco, which he visited in 1534 and 1535. He recovered a ship, which had been seized by Nuño de Guzman; and having assembled the vessels he had commanded to be built in Tehuantepec, he embarked every thing needful to found a colony. The sufferings he experienced in this expedition were extraordinarily great; his little fleet was assailed by famine and tempests, and, so long was he unheard of, in Mexico, that, at the earnest instance of his wife, the viceroy Mendoza sent two vessels to search for him. He returned, at length, to Acapulco; but not content with his luckless efforts, he made arrangements for a new examination of the coasts, by Francisco de Ulloa, which resulted in the discovery of California, as far as the Isle de Cedros, and of all that gulf, to which geographers have given the name of the "Sea of Cortéz."