... traces of bivalves and multitudes of spines of the sea-urchin, but no well-defined remains could be knocked off. The river could still be followed a short distance further upwards; and in its bed there were disjointed fragments of talcose and ... — The Former Philippines thru Foreign Eyes • Fedor Jagor; Tomas de Comyn; Chas. Wilkes; Rudolf Virchow.
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