'You cannot explain one incredible thing by quoting another incredible thing,' said Challenger. 'I do not believe in your apports, Mr. Nemor, and I do not believe in your machine. My time is valuable, and if we are to have any sort of demonstration I would beg you to proceed with it without further ceremony. '

'Then you will be pleased to follow me,' said the inventor. He led us down the stair of the flat and across a small garden which lay behind. There was a considerable outhouse, which he unlocked and we entered.

Inside was a large whitewashed room with innumerable copper wires hanging in festoons from the ceiling, and a huge magnet balanced upon a pedestal. In front of this was what looked like a prism of glass, three feet in length and about a foot in diameter. To the right of it was a chair which rested upon a platform of zinc, and which had a burnished copper cap suspended above it. Both the cap and the chair had heavy wires attached to them, and at the side was a sort of ratchet with numbered slots and a handle covered with indiarubber which lay at present in the slot marked zero.

'Nemor's Disintegrator,' said this strange man, waving his hand towards the machine

'This is the model which is destined to be famous, as altering the balance of power among the nations. Who holds this rules the world. Now, Professor Challenger, you have, if I may say so, treated me with some lack of courtesy and consideration in this matter. Will you dare to sit upon that chair and to allow me to demonstrate upon your own body the capabilities of the new force?'

Challenger had the courage of a lion, and anything in the nature of a defiance roused him in an instant to a frenzy He rushed at the machine, but I seized his arm and held him back.