The remarkably vigorous expedition of Andrade and Espence occurred within the memory of men still active, and naturally it lives in tradition at Hermosillo and Bacuache, and among the ranchos lying toward the border of Seriland; indeed, one of the two Mexicans accompanying the 1895 expedition, Don Ygnacio Lozania, retained shadowy impressions of participating in an invasion of the island, which could have been none other than that planned by Governor De Leon and executed by Colonel Andrade. Yet it is not uncharacteristic of Sonoran history that the wave of anti-Seri activity culminating in 1844 hardly outlasted its own breaking; certainly Escudero, writing less than five years later, declared of “la nacion _Seri_”: “During thirty-three years they have committed not a single act of hostility and live in peace and perfect harmony with the Sonorenses.” He added that they occupied the islands of Tiburon and Tepoca (sic) and the coasts of the gulf contiguous to Sonora and California, and from the most remote antiquity had been known by the names of “_tiburones_” or “_seris_”. Describing Pueblo Seri, he observed: “It now contains hardly a dozen aged Seris of both sexes”; and he forecast the early extinction of the tribe, since the people were incapable of abandoning their independent and solitary existence.[168] [168] Noticias Estadisticas, pp. 141-142. * * * * * Here ends, practically, the history of Pueblo Seri as a Seri settlement, for, although one of the tribe survived for half a century and a few others may have survived for a decade, the “aged Seris of both sexes” melted away so rapidly as to leave no later record, and were apparently never replaced by others. Briefly, the history of the pueblo began with the establishment of a presidio or military post in 1741 in the natural gateway and watering-place leading into the settled valleys of the Opodepe and upper Sonora, for the sole purpose of protecting the settlements against the wandering Seri, who used this typical Sonora watergap as a way-station on forays but never as a place of residence. The history grew definite when the Jesuits obtained the allotment of lands for the Seri and established for them a mission, which was at the same time a place of catechizing for Seri neophytes, a place of detention for Seri captives, a place of refuge for Seri weaklings, and a place of resort for Seri sneaks and spies. The history proceeded with many vicissitudes, as the presidio was alternately abandoned under Seri attacks and reoccupied when the attacks were repulsed, and as the neophytes alternately escaped and suffered recapture; the formal history waned in relative importance as the population and interests of Pitic and afterward of Hermosillo waxed, and as the lands originally allotted to the Seri were gradually taken and held by Mexican settlers, and ended when the Seri tenure was formally extinguished in 1844, as described by Cabrera and Velasco;