a telegraph operator and began to work up an independent business along
inventive lines, so that he really began his career as an inventor at
the Hub.

"After the vote recorder, he invented a stock ticker, and started a
ticker service in Boston which had thirty or forty subscribers, and
operated from a room over the Gold Exchange.

* * * * *

"The third talk on Mr. Edison and his inventions will be given from this
broadcasting station WUK next Monday at the same hour."




CHAPTER VIII


OPPORTUNITY KNOCKS


As the young people rose to depart, Professor Gray beckoned Bill and Gus
to remain. He turned to a large table desk, took from it a roll of
papers, untied and laid before the boys a number of neatly executed
plans and sections--all drawn to scale. In an upper corner was
pen-printed the words:

Water Power Electric Plant to be erected for and on the estate of Mr.
James Hooper, Fairview. Engineer and Contractor, J. R. Gray.