I have letters from Vail at Washington and Rogers at Baltimore stating the fact that complete success has attended all the transmission of results by Telegraph, there not having been a failure in a single instance, and to the entire satisfaction of both political parties in the perfect impartiality of the directors of the Telegraph. While the success of the Telegraph had now been fully demonstrated, and while congratulations and honors were showered on the inventor from all quarters, negotiations for its extension proceeded but slowly. Morse still kept hoping that the Government would eventually purchase all the rights, and it was not until well into 1845 that he was compelled to abandon this dream. In the mean time he was kept busy replying to enquiries from the representatives of Russia, France, and other European countries, and in repelling attacks which had already been launched against him in scientific circles. As an example of the former I shall quote from a letter to His Excellency Alexander de Bodisco, the Russian Minister, written in December, 1844:-- "In complying with your request to write you respecting my invention of the Electro-Magnetic Telegraph, I find there are but few points of interest not embraced in the printed documents already in your possession. The principle on which, my whole invention rests is the power of the electro-magnet commanded at pleasure at any distance. The application of this power to the telegraph is original with me. If the electro-magnet is now used in Europe for telegraphic purposes, it has been subsequently introduced. All the systems of electric telegraphs in Europe from 1820 to 1840 are based on the _deflection of the magnetic needle_, while my system, invented in 1832, is based, as I have just observed, on the electro-magnet.... "Should the Emperor be desirous of the superintendence of an experienced person to put the Telegraph in operation in Russia, I will either engage myself to visit Russia for that purpose; or, if my own or another government shall, previous to receiving an answer from Russia, engage my personal attendance, I will send an experienced person in my stead." As a specimen of the vigorous style in which he repelled attacks on his merits as an inventor, I shall give the following:-- Messrs. Editors,--The London "Mechanics' Magazine," for October, 1844, copies an article from the Baltimore "American" in which my discovery in relation to causing electricity to cross rivers without wires is announced, and then in a note to his readers the editor of the magazine makes the following assertion: "The English reader need scarcely be informed that Mr. Morse has in this, as in other matters relating to magneto telegraphs, only _re_discovered what was previously well known in this country."