From the same part of the Republic, as well as from several of the Upper Provinces, any quantity of indigo may be obtained, of an excellent quality. M. Bonpland, the celebrated naturalist, who has spent so many years in those parts, took the trouble years ago to draw attention to the peculiarity of the indigo found in the province of Corrientes. Speaking of those parts called the Missions, he says, "The whole of this country exceeds description; at every step one meets with things both new and useful in natural history. I have already collected 2000 plants, a large quantity of seeds, &c. "Amongst the number of interesting plants to which my attention has been called, I am of opinion that this country may hereafter derive great advantages from the three new species of indigo which I have found in these fertile regions. They are very different from the plant from which the indigo is obtained in Mexico, Venezuela, Brazil, and India; and I flatter myself that the South Americans will avail themselves of this discovery, and cultivate a plant which has hitherto been disregarded under the common name of _yuyo_. The superior quality of indigo that may be obtained from this newly-discovered plant, and the facility of its conveyance down to a port of shipment, render it an object of great importance to a country that has only a few exports, and its cultivation, if encouraged by the government, and undertaken by capitalists, will in a few years furnish an interesting and staple commodity for trade." This account of the Corrientes indigo was copied from the Buenos Ayrean papers into the Annual Register for 1822, together with the following remarks on some other of the natural resources of the provinces of La Plata, which seem well deserving the notice of those interested in the trade with that part of the world:--"there are many other natural resources of the country to which the attention of the government of Buenos Ayres ought to be called. The _seda silvestre_, a sort of wild silk left in the woods by a certain caterpillar, is found abundantly on the banks of the Paranã, and would constitute a valuable export. Very good cochineal may be gathered in Tucuman, besides a great quantity of bees'-wax.