This excerpt from Alexander Graham Bell's notebook on March 10th, 1876, details the successful experiment with his new invention, the telephone. Bell outlines the experiment itself and his famous words, "Watson, come here, I want to see you" in the text of his notes. Subsequent entries discuss variants on the experiment, and their results. While Bell was not the only person working on this type of transmitter, he is generally accredited with being the inventor of the telephone, even though his patents were contested by several different scientists over the course of his life.

Investigate the source using the zoom and navigational tools in the Flash player and then answer the questions below.

1			How is reading about the telephone experiment in Bell's notebook different than reading about the event in another source? What can we learn from Bell's own notes?
2			What can we learn about the practice of science in the late nineteenth century based on this notebook?
3			How can this notebook be studied as an historical artifact? What must scholars keep in mind when they are using sources such as this?