Tacna, elevation of.
Tampico, elevated shells near.
Tandil, crystalline rocks of.
Tapalguen, Pampean formation of. —crystalline rocks of.
Taylor, Mr., on copper veins of Cuba.
Temperature of Chile during the tertiary period.
Tension, lines of, origin of, axes of elevation and of cleavage.
Tenuy Point, singular section of.
Tenuyan, valley of.
Terraces of the valley of S. Cruz. —of equable heights throughout Patagonia. —of Patagonia, formation of. —of Chiloe. —at Conchalee. —of Coquimbo. —not horizontal at Coquimbo. —of Guasco. —of S. Lorenzo. —of gravel within the Cordillera.