The sterile plains of Mendoza and Patagonia consist of a bedof shingle, worn smooth and accumulated by the waves of the sea;while the Pampas, covered by thistles, clover, and grass, have beenformed by the ancient estuary mud of the Plata. Bachman hastried in the United States many varied plans, showing that neitherthe turkey-buzzard (the species dissected by Professor Owen) northe gallinazo find their food by smell. We dined with our friend the commandant, and didnot reach Castro till after dark. Hereand there a peak or ridge of grey quartz rock breaks through thesmooth surface. The town is indifferently called El Carmen or Patagones. The steepcliff near the mouth of the Rio Negro is its northern limit on thePatagonian coast; and they have there wandered about four hundredmiles from the great central line of their habitation in the Andes. This structure is remarkable in a graniticland, but is nearly universal in all those softer formations ofwhich plains are usually composed. ) The great size of the bones of the Megatheroid animals, includingthe Megatherium, Megalonyx, Scelidotherium, and Mylodon, is trulywonderful. San Pedro is situated in the middle of the finestcountry; and even now abounds again with animals; yet during thelatter part of the "gran seco," live cattle were brought in vesselsfor the consumption of the inhabitants.
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- Fall '16
- estuary, Bachman hastried, thesmooth surface