Almost with the secrecy of a conspirator, he worked alone in this cellar, usually at night, and quite oblivious of the fact that sleep was a necessity to him and to the Sanders family.
"Often in the middle of the night Bell would wake me up," said Thomas Sanders, the father of Georgie.

"His black eyes would be blazing with excitement.

Leaving me to go down to the cellar, he would rush wildly to the barn and begin to send me signals along his experimental wires.

If I noticed any improvement in his machine, he would be delighted.

He would leap and whirl around in one of his `war-dances' and then go contentedly to bed.