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  • 131tunnels and underground excavations — ▪ engineering Introduction        Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …

    Universalium

  • 132Science and the Church — • Dicsusses the relationship between the two subjects Catholic Encyclopedia. Kevin Knight. 2006. Science and the Church     Science and the Church      …

    Catholic encyclopedia