In those regions lying between the two great rivers the population was of a gentle and peace-loving nature and, therefore, was easily molded by missionary civilization. Along the slopes of the Andes the people were daring, excitable and independent. The south or Patagonian extremity was overrun by brave and unconquerable tribes, closely related to that Araucanian race which the Spanish conquest never entirely succeeded in subduing. The Spanish settlements on the other hand presented different characteristics. In the north they came from Lima, and were Biscayan and Castillian, aristocratic, very proud of their ancestry, holding aloof, enriched by the mines of Potosi and the commerce of the fleet of Portobello. Southward were Andalusians and Spanish common folk, little given to titles and conventionalities. They were condemned to pursue the smuggler's trade, because the mother country, following an economic error of the time and perhaps owing to deficient geographic knowledge, permitted them only an overland commerce, by mule back, from the Panama fleet which unloaded its cargoes in Callao. Hence in the provinces of the north, called High Peru, and in the present provinces of Jujuy and Tucuman, the Spanish population held up Lima as their ideal, and exhibited both its vices and its virtues. Out of it was formed the aristocratic, commercial and luxurious city of Salta. On the other hand, in the river provinces, the existence of the cities was precarious and fraught with the dangers of a smuggling trade carried on with the Portuguese neighbors--the source of the centuries-old controversy of Sacramento colony. These settlements were not unacquainted with the fear of pirates, of daring navigators and of roving slave dealers, who on their arrival at the River Plate unloaded the "products of their country," with the toleration and secret complicity of the government officials and with the connivance of the inhabitants. These inhabitants were true outlaws. They scoffed at the administration and fiscal measures and trusted more to their fists than they feared being caught in the complicated meshes of the uneconomic laws.