Then with a sudden burst of illumination, a marvellous glow of a deep violet color shot over the whole room, and the two men turned and faced each other both with inquiry in their looks, so unexpected was this theatrical effect to the one, and so inexplicable its cause and purpose to the other.
"That is but one slide," remarked Mr.Gryce.

"Now I will press another button, and the color changes to--pink, as you see.

This one produces green, this one white, and this a bilious yellow, which is not becoming to either of us, I am sure.

Now will you examine the connection, and see if there is anything peculiar about it ?" Mr.Hines at once set to work.

But beyond the fact that the whole contrivance was the work of an amateur hand, he found nothing strange about it, except the fact that it worked so well.
Mr.Gryce showed disappointment.
"He made it, then, himself ?" he asked.
"Undoubtedly, or some one else equally unacquainted with the latest method of wiring." "Will you look at these books over here and see if sufficient knowledge can be got from them to enable an amateur to rig up such an arrangement as this ?" Mr.Hines glanced at the shelf which Mr.Gryce had pointed out, and without taking out the books, answered briefly: "A man with a deft hand and a scientific turn of mind might, by the aid of these, do all you see here and more.