But the rising of that part of the coast of Patagonia is perhaps no way connected with the Cordillera, but rather with a line of old volcanic rocks in Banda Oriental, so that it may have been infinitely slower than on the shores of Peru.

All these speculations, however, must be vague; for who will pretend to say that there may not have been several periods of subsidence, intercalated between the movements of elevation?
for we know that along the whole coast of Patagonia there have certainly been many and long pauses in the upward action of the elevatory forces.
(PLATE 78.

HUACAS, PERUVIAN POTTERY.).