Journey to the Center of the Earth · Chapter
XIX: Geological Studies In Situ explained
The expedition continues its descent through the lava gallery, reaching a fork in the tunnel.
What happens
The expedition continues its descent through the lava gallery, reaching a fork in the tunnel. Professor Liedenbrock chooses the eastern path without hesitation. As they progress, the rock formations change from lava to Silurian strata, revealing fossil evidence of early life. Axel becomes concerned about the rising incline and the diminishing water supply, but the Professor remains determined to push forward despite the risks.
Themes in this chapter
Scientific Curiosity and Ambition
Professor Liedenbrock's relentless drive to explore the tunnel to its end, despite geological evidence of a wrong path, exemplifies scientific ambition.
The Limits of Human Knowledge
Axel's fear of being lost in the labyrinth and the uncertainty of the tunnel's direction highlight the limits of human understanding in the face of nature's vastness.
Human Endurance and Survival
The group's physical struggle with the rising incline and the looming threat of water shortage underscores human endurance.
Characters to notice
- Axel Liedenbrock
Axel observes the geological changes, worries about the rising incline and water shortage, and longs to see Gräuben again.
- Professor Otto Liedenbrock
The Professor stubbornly leads the group through the eastern tunnel, ignoring signs of a wrong path and dismissing Axel's concerns.
- Hans Bjelke
Hans silently leads the way, stopping at the fork and following the Professor's choice without comment.
- Gräuben
Axel thinks of meeting his little Gräuben again, providing emotional motivation.
Key passages
“I only hope, thought I, that this so-called extinct volcano won’t take a fancy in his old age to begin his sports again!”
Axel worries that the dormant volcano might erupt again.
Axel's internal fear of volcanic activity contrasts with the Professor's single-minded focus.
“It is evident,” I cried, “the marine deposits formed in the second period, these shales, limestones, and sandstones. We are turning away from the primary granite.”
Axel realizes they have left the lava tube and entered sedimentary rock layers from an ancient sea.
Axel's geological observation signals a deviation from the intended path.
“But don’t you conclude—?” “Just what you conclude yourself. Yes; I do, perfectly. We have left the granite and the lava. It is possible that I may be mistaken. But I cannot be sure of that until I have reached the very end of this gallery.””
The Professor admits they may be off course but insists on continuing to the tunnel's end.
The Professor's stubbornness drives the plot despite mounting evidence of error.