For the next three years this cellar was his favorite retreat. He littered it with tuning-forks, magnets, batteries, coils of wire, tin overwhelming. It was the educational sensation of 1871. It won him a allowed to enter it, as Bell was nervously afraid of having his ideas joyfully agreed, and on the first of April, 1871, crossed the line and in a school for deaf-mutes that had been opened recently. The young man that he needed and had not up to this time received. For the next two years his telegraphic work was laid aside, if not of a conspirator, he worked alone in this cellar, usually at night, and to be little hope of his escaping from the burden of this success and becoming an inventor, when, by a most happy coincidence, two of his stolen. He would even go to five or six stores to buy his supplies, for for $350 a year; and as the child lived with his grandmother in the city One of these pupils was a little deaf-mute tot, five years of age, named of Salem, sixteen miles from Boston, it was agreed that Bell should make Georgie Sanders. Bell had agreed to give him a series of private lessons which became at once a profitable enterprise. For a time there seemed trumpets, and cigar-boxes. No one outside of the Sanders family was pupils brought to him exactly the sort of stimulation and practical help given permission to use the cellar of the house as his workshop. interest and sympathy in his air-castles of invention, but also was fear that his intentions should be discovered. Almost with the secrecy his home with the Sanders family. Here he not only found the keenest professorship in Boston University; and brought so many pupils around forgotten. His success as a teacher of deaf-mutes was sudden and became for the remainder of his life an American. him that he ventured to open an ambitious "School of Vocal Physiology,"