Various plants yield rubber: one species, of a family known as “lecherones,” grows in the darkest and dampest parts of the forest; others, called “heveas” in Brazil, are much thinner in the stem; and finally there is a third kind, the “liane” or rubber vine. The first variety, that of the “lecherones,” gives a yield of 17-1/2 to 22 lbs. of gum per annum; there are forest lands containing as many as 50,000 plants to the square league——over 5000 to the square mile——while the poorest districts produce 2000 to the league. Considering the present high prices of rubber, we may obtain some idea of the great wealth of this region. The method of exploitation is easy and simple; the country is indubitably healthy, and with labourers paid at the rate of 3s. 7d. to 15s. 9d. a day a considerable profit would remain. To-day men of initiative are busily seeking to exploit this new source of forestal wealth, which ought in time to become another centre of attraction to men and to capital. _Arboriculture._——There is another kind of culture which is destined in the future, although at present it has only the smallest importance, to become an industry of considerable moment; the culture, namely, of orchard trees, of which we must mention the rapid progress. Given the immense area of Argentine territory, endowed with the most varied climates, from the snows of Tierra del Fuego to the semi-tropical heat of Corrientès and Jujuy; from the temperate warmth of the coast to the more relaxing temperatures of the mountains of Córdoba or the Andean frontier, and containing land at all altitudes above the level of the sea, it is not to be wondered at that all the fruit-bearing trees of the world can live and flourish in the Republic. In the northern region, and especially in Corrientès, Tucuman, Salta, La Rioja, Catamarca, Jujuy, Formosa, Chaco, and Misionès, there are to-day groves of oranges, mandarins, lemons and limes of various kinds, figs, and pomegranates. At Tucuman and Salta “chirimoyos” and “paltas” are cultivated. Almonds, olives, Barbary figs, ananas or bread-fruit, bananas and “guayabos” may also be grown in this region; but unhappily the fruit-growing industry is at a standstill, on account of the lack of labour which is so great a difficulty in all departments of the industrial and economic life of the Argentine.