The next noteworthy scientific student of the Seri was Johann Carl Eduard Buschmann, who visited various Mexican tribes, but whose knowledge of the Seri was wholly secondhand. Quoting Villa-Señor and Arrecivita and other early writers, noting unfortunate passages from Bartlett, and magnifying Mühlenpfordt’s misapprehensions into positive error, he reduced knowledge of this and neighboring tribes to chaos. The “Guaymas” were separated from the “Seris (oder Seres)”, and these (at least by implication) from the “Tiburones”, while the “Piatos” were combined with the Seri, the traditional alliance with the Apache was greatly overdrawn, and the “Heri oder Heris” and the “Tepocas” were treated as distinct.[180] No new facts were adduced, no use was made of local sources of information, and no notice was taken of other than literary data. [180] Die Spuren der aztekischen Sprache im nördlichen Mexico und höheren amerikanischen Norden. Zugleich eine Musterung der Völker und Sprachen des nördlichen Mexicos und der Westseite Nordamerikas von Guadalaxara an bis zum Eismeer. Von Joh. Carl Ed. Buschmann (in Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin, aus dem Jahre 1854, zweiter Supplement-Band); Berlin, 1859, pp. 218-221 and elsewhere. In 1857 the gigantic surveying enterprise of Jecker & Co. was undertaken, under a concession from the Government of Mexico, and the scientific surveys were intrusted to a commission headed by El Capitan Carlos Stone (General Charles Pomeroy Stone, U. S. A.). The commission headquartered at Guaymas, purchased vessels for the survey of the coast, and began operations also in the interior; Bahia Pinacati and George island (named by Hardy in 1826) were surveyed, as well as the entire Sonoran coast south of Guaymas, and “one hundred miles of coast near Tiburon”, besides many hundred square miles of valuable lands. At this stage friction developed between the progressive commission and the conservative Sonorenses, which ended in the expulsion of the scientific commission by the State government.[181] By reason of the premature termination of the work, few of the observations and other results were ever published. General Stone himself traveled extensively in Sonora, and delved deeply in the historical records of northern Mexico; and, while there is no indication that he ever came in personal contact with the Seri, he collected and sifted current local information relating to the tribe with notable acumen. In certain “Notes” prepared in Washington in December, 1860, he wrote: [181] Arizona and Sonora, etc., by Sylvester Mowry; New York, 1864. pp. 98-102.