The Naturalist in La Plata | Page 2

the disappearance of numberless noble and beautiful forms, both of the animal and vegetable kingdoms. For he cannot find it in his heart to love the forms by which they are replaced; these are cultivated and domesticated, and have only become useful to man at the cost of that grace and spirit which freedom and wildness give. In numbers they are many--twenty-five millions of sheep in this district, fifty millions in that, a hundred millions in a third--but how few are the species in place of those destroyed? and when the owner of many sheep and much wheat desires variety--for he possesses this instinctive desire, albeit in conflict with and overborne by the perverted instinct of destruction--what is there left to him, beyond his very own, except the weeds that spring up in his fields under all skies, ringing him round with old-world monotonous forms, as tenacious of their undesired union with him as the rats and cockroaches that inhabit his house?
We hear most frequently of North America, New Zealand, and Australia in this connection; but nowhere on the globe has civilization "written strange defeatures" more markedly than on that great area of level country called by English writers the pampas, but by the Spanish more appropriately _La Pampa_--from the Quichua word signifying open space or country--since it forms in most part one continuous plain, extending on its eastern border from the river Parana, in latitude 32 degrees, to the Patagonian formation on the river Colorado, and comprising about two hundred thousand square miles of humid, grassy country.
This district has been colonized by Europeans since the middle of the sixteenth century; but down to within a very few years ago immigration was on too limited a scale to make any very great change; and, speaking only of the pampean country, the conquered territory was a long, thinly-settled strip, purely pastoral, and the Indians, with their primitive mode of warfare, were able to keep back the invaders from the greater portion of their ancestral hunting-grounds. Not twenty years ago a ride of two hundred miles, starting from the capital city, Buenos Ayres, was enough to place one well beyond the furthest south-western frontier outpost. In 1879 the Argentine Government determined to rid the country of the aborigines, or, at all events, to break their hostile and predatory spirit once for all; with the result that the entire area of the grassy pampas, with a great portion of the sterile pampas and Patagonia, has been made available to the emigrant. There is no longer anything to deter the starvelings of the Old World from possessing themselves of this new land of promise, flowing, like Australia, with milk and tallow, if not with honey; any emasculated migrant from a Genoese or Neapolitan slum is now competent to "fight the wilderness" out there, with his eight-shilling fowling-piece and the implements of his trade. The barbarians no longer exist to frighten his soul with dreadful war cries; they have moved away to another more remote and shadowy region, called in their own language Alhuemapu, and not known to geographers. For the results so long and ardently wished for have swiftly followed on General Roca's military expedition; and the changes witnessed during the last decade on the pampas exceed in magnitude those which had been previously effected by three centuries of occupation.
In view of this wave of change now rapidly sweeping away the old order, with whatever beauty and grace it possessed, it might not seem inopportune at the present moment to give a rapid sketch, from the field naturalist's point of view, of the great plain, as it existed before the agencies introduced by European colonists had done their work, and as it still exists in its remoter parts.
The humid, grassy, pampean country extends, roughly speaking, half-way from the Atlantic Ocean and the Plata and Paran�� rivers to the Andes, and passes gradually into the "Monte Formation," or _sterile pampa_--a sandy, more or less barren district, producing a dry, harsh, ligneous vegetation, principally thorny bushes and low trees, of which the cha?ar (Gurliaca decorticans) is the most common; hence the name of "Cha?ar-steppe" used by some writers: and this formation extends southwards down into Patagonia. Scientists have not yet been able to explain why the pampas, with a humid climate, and a soil exceedingly rich, have produced nothing but grass, while the dry, sterile territories on their north, west, and south borders have an arborescent vegetation. Darwin's conjecture that the extreme violence of the _pampero,_ or south-west wind, prevented trees from growing, is now proved to have been ill-founded since the introduction of the Eucalyptus globulus; for this noble tree attains to an extraordinary height on the pampas, and exhibits there a luxuriance of foliage never seen in Australia.
To this level area--my "parish of Selborne,"