 A fair number of explorers and missionaries left brief ethnographic notes concerning the Guaycura.The most detained accounts were written by the Alsatian Jesuit Johann Jakob Baegert, stationed at San Luis Gonzaga mission between 1751 and 1768 (Baegert 1772, 1952, 1982).Baegert took a decidedly sour view of his charges, at one point characterizing them as "stupid, awkward, rude, unclean, insolent, ungrateful, mendacious, thievish, abominably lazy, great talkers to their end, and naïve and childish."