of oxygen it is no longer fit to breathe." "Right! But I told you, M.Aronnax, that the pumps of the Nautilus allow me to store the air under considerable pressure, and on those conditions the reservoir of the apparatus can furnish breathable air for nine or ten hours." "I have no further objections to make," I answered.

"I will only ask you one thing, Captain--how can you light your road at the bottom of the sea ?" "With the Ruhmkorff apparatus, M.Aronnax; one is carried on the back, the other is fastened to the waist.

It is composed of a Bunsen pile, which I do not work with bichromate of potash, but with sodium.

A wire is introduced which collects the electricity produced, and directs it towards a particularly made lantern.

In this lantern is a spiral glass which contains a small quantity of carbonic gas.