Araguay

Chambers's Encyclopaedia, Volume 1: A to Beaufort, p. 370

Araguay, a large river of Brazil, rising in the Sierra Sciadia, and flowing 1000 miles northward, till, at San Joao, it joins the Tocantins, which again, after a northerly course of 300 miles more, mingles its estuary with that of the Amazon round the Isle of Marajo.

Source scan(s): p. 0389