Note III-45 — Chapter III · ITINERARY, CONCLUDED: IN THE MOUNTAINS OF COLORADO ON HEADWATERS OF THE ARKANSAW AND RIO GRANDE, DECEMBER 1ST, 1806-FEBRUARY 26TH, 1807.
Reading edition
It is uncertain to what work we are here referred. There may be some old military treatise, well known in Pike's time, to which he thus alludes; but I think it most likely that he means his own Observations on New Spain, which formed a part of the App. to Pt. 3 of the orig. ed. of this work, and which included a considerable account of the military establishment of that country. If so, the "Essai Militaire" in question will be found beyond.