Chapter XII: In the Cut at Las Cascadas

This drawing shows the cut and gives from above some idea of the different levels on which the work is carried out. It is on some of these levels that slides have occurred and wrecked the work. The slides move slowly, not like avalanches, but have caused endless complications; but Colonel Gaillard, the engineer in charge, believes he will triumph over all his difficulties--which include even a small volcano--there is a newspaper story--but no earthquakes.