Meucci, however, kept at his experiments with the object of improving his telephone, and several changes of form were the result.  Fig. 8 shows one of these instruments constructed during 1864-65.  It consisted of a ring of iron wound spirally with copper wire, and from two opposite sides iron wires attached to the core supported an iron button.  This was placed opposite an iron diaphragm, which closed a cavity ending in a mouthpiece.  He also constructed the instrument which is shown in Fig. 9, and which, he says, was the best instrument he had ever constructed.  The bobbin was a large one, and was placed in a soapbox of boxwood, with magnet core and iron diaphragm.  Still seeking greater perfection, Meucci, in 1865, tried the bent horseshoe form, shown in Fig. 10, but found it no improvement; and, although he experimented up to the year 1871, he was not able to obtain any better results than the best of his previous instruments had given.

[Illustration:  FIG. 6.—­1856.]

When Meucci arrived in this country, he had property valued at $20,000, and he entered into the brewing business and into candle making, but he gradually lost his money, until in 1868 he found himself reduced to little or nothing.  To add to his misery, he had the misfortune of being on the Staten Island ferryboat Westfield when the latter’s boiler exploded with such terrible effect in 1871.  He was badly scalded, and for a time his life was despaired of.  After he recovered he found that his wife, in their poverty, had sold all his instruments to John Fleming, a dealer in second-hand articles, and from whom parts of the instruments have recently been recovered.

[Illustration:  FIG. 7.—­1858-60.]

With the view of introducing his invention, Meucci now determined to protect it by a patent; and having lost his instrument, he had a drawing made according to his sketches by an artist, Mr. Nestori.  This drawing he showed to several friends, and took them to Mr. A. Bertolino, who went with him to a patent attorney, Mr. T.D.  Stetson, in this city.  Mr. Stetson advised Meucci to apply for a patent, but Meucci, without funds, had to content himself with a caveat.  To obtain money for the latter he formed a partnership with A.Z.  Grandi, S.G.P.  Buguglio, and Ango Tremeschin.  The articles of agreement between them, made Dec. 12, 1871, credit Meucci as the inventor of a speaking telegraph, and the parties agree to furnish him with means to procure patents in this and other countries, and to organize companies, etc.  The name of the company was “Teletrofono.”  They gave him $20 with which to procure his caveat, and that was all the money he ever received from this source.