La Plata, the Argentine Confederation and Paraguay. Being a Narrative of the Exploration of the Tributaries of the River La Plata and Adjacent Countries During the Years 1853, '54, '55 and '56

La Plata, the Argentine Confederation and Paraguay. Being a Narrative of the Exploration of the Tributaries of the River La Plata and Adjacent Countries During the Years 1853, '54, '55 and '56