About
6 key topics covered
How he measured cave passages using rope.
How he was able to establish cave depths.
Light techniques used to highlight/light up large chambers to see their vastness.
Working out the direction of water flow in dry cave chambers.
How he was able to unlock other areas of cave that he could not reach for future cave explorers and adventurers.
The difficulties faced in 1895 with equipment to explore cave systems compared to present day.