A glance at the map of both Republics will show that, from geographic and climatic distribution, they may practically be reckoned as one country in this regard. Indeed, as will be seen, Señor Mauduit specifically includes Uruguay in what he terms the Riparian Region. He says that the configuration of the different zones and the fertility of their soil allow of the cultivation of every product of the two Americas, Asia, Europe and Australia, with the exception of those of the torrid zone.
The following enumeration of “regions” and of the chief kinds of trees found and capable of being grown in the River Plate countries, with the respective descriptions, are taken from the Monograph above referred to:—
1. Subtropical, comprising the plains of Santiago del Estero and the Chaco, the lowlands of Tucumán, Salta and Jujuy, North Corrientes and Misiones.
2. Northern Andean, stretching along the Andes, from San Juan to the Bolivian frontier, comprising Catamarca, Salta, Jujuy, Los Andes and part of Tucumán.
3. Southern Andean, from San Juan to Neuquen.
4. Northern Pampean, from Santiago del Estero to Buenos Aires, wherein the eucalyptus trees do not suffer from frost, and comprising Córdoba, San Luis, part of Santa Fé and Buenos Aires.
5. Southern Pampean, comprising Córdoba and San Luis, where the eucalyptus freezes, Southern Buenos Aires and the Pampas.
6. Austral, composed of the territories of Rio Negro, Chubut and Santa Cruz.
7. Riparian, comprising the islands of the Paraná, Entre Rios and the shores of the rivers Plate, Paraná and Uruguay.
8. Maritime, stretching along the Atlantic coast in a belt three leagues wide, more or less, according to the configuration of the soil.