Jules Verne: Twenty Thousand Leagues Under the Seas

FIRST PART CHAPTER 15: An Invitation in Writing (continued)

"With the Ruhmkorff device, Professor Aronnax. If the first is carried on the back, the second is fastened to the belt. It consists of a Bunsen battery that I activate not with potassium dichromate but with sodium. An induction coil gathers the electricity generated and directs it to a specially designed lantern. In this lantern one finds a glass spiral that contains only a residue of carbon dioxide gas. When the device is operating, this gas becomes luminous and gives off a continuous whitish light. Thus provided for, I breathe and I see."

"Captain Nemo, to my every objection you give such crushing answers, I'm afraid to entertain a single doubt. However, though I have no choice but to accept both the Rouquayrol and Ruhmkorff devices, I'd like to register some reservations about the rifle with which you'll equip me."

"But it isn't a rifle that uses gunpowder," the captain replied.

"Then it's an air gun?"

"Surely. How can I make gunpowder on my ship when I have no saltpeter, sulfur, or charcoal?"

"Even so," I replied, "to fire underwater in a medium that's 855 times denser than air, you'd have to overcome considerable resistance."

"That doesn't necessarily follow. There are certain Fulton-style guns perfected by the Englishmen Philippe-Coles and Burley, the Frenchman Furcy, and the Italian Landi; they're equipped with a special system of airtight fastenings and can fire in underwater conditions. But I repeat: having no gunpowder, I've replaced it with air at high pressure, which is abundantly supplied me by the Nautilus's pumps."

"But this air must be swiftly depleted."

"Well, in a pinch can't my Rouquayrol tank supply me with more? All I have to do is draw it from an ad hoc spigot.* Besides, Professor Aronnax, you'll see for yourself that during these underwater hunting trips, we make no great expenditure of either air or bullets."

*Latin: a spigot "just for that purpose." Ed.