Cum ergo per bituminosam terram vis erumpit aquae, secum extrahit et, cum sit egressa extra terram, secernitur et ita reicit ab se bitumen.
When, therefore, a spring of water rushes through the bituminous land, it draws the bitumen with it, and passing outside, the water separates and deposits the bitumen.
final_alignments\Vitruvius_Architecture_Book_8.json