No other citizen had done more for the city of Cambridge than Hubbard. It was he who secured gas for Cambridge in 1853, and pure water, and a street-railway to Boston. He had gone through the South in 1860 in the patriotic hope that he might avert the impending Civil War. He had induced the legislature to establish the first public school for deaf-mutes, the school that drew Bell to Boston in 1871. And he had been for years a most restless agitator for improvements in telegraphy and the post office. So, as a promoter of schemes for the public good, Hubbard was by no means a novice. His first step toward capturing the attention of an indifferent nation was to beat the big drum of publicity. He saw that this new idea of telephoning must be made familiar to the public mind. He talked telephone by day and by night. Whenever he travelled, he carried a pair of the magical instruments in his valise, and gave demonstrations on trains and in hotels. He buttonholed every influential man who crossed his path. He was a veritable "Ancient Mariner" of the telephone. No possible listener was allowed to escape. Further to promote this campaign of publicity, Hubbard encouraged Bell and Watson to perform a series of sensational feats with the telephone. A telegraph wire between New York and Boston was borrowed for half an hour, and in the presence of Sir William Thomson, Bell sent a tune over the two-hundred-and-fifty-mile line. "Can you hear?" he asked the operator at the New York end. "Elegantly," responded the operator. "What tune?" asked Bell. "Yankee Doodle," came the answer. Shortly afterwards, while Bell was visiting at his father's house in Canada, he bought up all the stove-pipe wire in the town, and tacked it to a rail fence between the house and a telegraph office. Then he went to a village eight miles distant and sent scraps of songs and Shakespearean quotations over the wire. There was still a large percentage of people who denied that spoken words could be transmitted by a wire. When Watson talked to Bell at public demonstrations, there were newspaper editors who referred sceptically to "the supposititious Watson." So, to silence these doubters, Bell and Watson planned a most severe test of the telephone. They borrowed the telegraph line between Boston and the Cambridge Observatory, and attached a telephone to each end. Then they maintained, for three hours or longer, the FIRST SUSTAINED conversation by telephone, each one taking careful notes of what he said and of what he heard. These notes were published in parallel columns in The Boston Advertiser, October 19, 1876, and proved beyond question that the telephone was now a practical success.