¹⁸ William Davis Robinson. Memoirs of the Mexican Revolution including a narrative of the expedition of General Xavier Mina; to which are annexed some observations on the practicability of opening a commerce between the Pacific and Atlantic oceans, through the Mexican isthmus, in the province of Oaxaca, and at the Lake of Nicaragua; and the vast importance of such commerce to the civilized world, Londres, 1821, t. II, p. 330.<<