be quoted as to some other work and its perils in experimentation:
"I also engaged in putting up private lines, upon which I used
an alphabetical dial instrument for telegraphing between business
establishments, a forerunner of modern telephony. This instrument
was very simple and practical, and any one could work it after a few
minutes' explanation. I had these instruments made at Mr. Hamblet's, who
had a little shop where he was engaged in experimenting with electric
clocks. Mr. Hamblet was the father and introducer in after years of the
Western Union Telegraph system of time distribution. My laboratory was
the headquarters for the men, and also of tools and supplies for those
private lines. They were put up cheaply, as I used the roofs of houses,
just as the Western Union did. It never occurred to me to ask permission
from the owners; all we did was to go to the store, etc., say we
were telegraph men, and wanted to go up to the wires on the roof; and
permission was always granted.

"In this laboratory I had a large induction coil which I had borrowed to
make some experiments with. One day I got hold of both electrodes of
the coil, and it clinched my hand on them so that I couldn't let go. The
battery was on a shelf. The only way I could get free was to back off
and pull the coil, so that the battery wires would pull the cells off
the shelf and thus break the circuit. I shut my eyes and pulled, but the
nitric acid splashed all over my face and ran down my back. I rushed to
a sink, which was only half big enough, and got in as well as I could
and wiggled around for several minutes to permit the water to dilute the
acid and stop the pain. My face and back were streaked with yellow; the
skin was thoroughly oxidized. I did not go on the street by daylight for
two weeks, as the appearance of my face was dreadful. The skin, however,
peeled off, and new skin replaced it without any damage."