Part 1 of Essay
is a name of great significance in American history today. A skillful inventor and generous philanthropist, he astounded the world with his intuitive ideas that proved to be both innovative and extremely practical in the latter half of the 19th century. Most notable, of course, are Bell's work in developing the telephon ....

Part 2 of Essay
.... deaf and following other creative ideas including the development of a metal detector, an electric probe which was used by many surgeons before the X ray was invented, a device having the same purpose as today's iron lung, and also a method of locating icebergs by detecting echoes from them. With his many inventions (especially the insanely popular and universally applied telephone), his efforts to educate the deaf, and the founding and financing of the American Association to Promote the Teaching of Speech to ....