It would be very difficult to transfer the photic borer to the other building, and I can light up the interior perfectly well by means of electric lights.

I can even lower a camera down to the very bottom and take photographs of the interior." "Why, that would be perfectly glorious!" cried Margaret, springing to her feet, an immense relief coming to her mind with the thought that to examine this actual shaft it would not be necessary for anybody to go down into it.
"I should go to work at that immediately," said he, "but I must have a different sort of windlass--one that shall be moved by an engine.

I will rig up the big telescope too, so that we can look down when we have lighted up the bottom." It required days to do all that Roland Clewe had planned.

A great deal of the necessary work was done in his own establishment, and much machinery besides was sent from New York.

When all was ready many experiments were made with the electric lights and camera, and photographs of inexpressible value and interest were taken at various points on the sides of this wonderful perpendicular tunnel.
At last Clewe was prepared to photograph the lower portion of the shaft.
With a peculiar camera and a powerful light five photographs were taken of the very bottom of the great shaft, four in horizontal directions and one immediately below the camera.