Note III'-7 — Chapter III · ITINERARY, CONCLUDED: THROUGH TEXAS TO NATCHITOCHES ON THE RED RIVER OF LOUISIANA, JUNE 1ST-JULY 1ST, 1807.
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Sabine r. still forms a portion of the boundary between Texas and Louisiana—that is, from the Gulf to 32° N., the remainder being along a meridian to 33°. In consequence of its delimiting office, it was formerly called Rio Mexicano and Mexican r. Thus "Mexicano R." appears on the map accompanying Winterbotham's History, N. Y., J. Reid, 1795.