As for other means of communication from intelligences of other worlds to our own, they will not be regarded as impossible in the presence of the achievements of men in such matters. By means of magnetic telegraph systems, man has established instant communication with all parts of the world. Not the highest mountain ranges, not deserts, not even ocean's wide expanse, have been sufficient to bar his way. He has made the earth a net-work of his cables and telegraph lines, until nearly every part of the earth is within the radius of instant communication. In 1896, the National Electric Light association celebrated the triumphs of electricity by holding a national electrical exposition in New York City. The occasion was the completion of the electric works at Niagara Falls. For ages, that great cataract had thundered out the evidence of its mighty power to heedless savages and frontiersmen; but modern man looked upon it, and by the expenditure of five million dollars, harnessed it, applied its forces to his contrivances, made it generate electric force which lights the cities, drives the street cars, and turns the wheels of industry for many miles around; and even transmitted its force to New York City, four hundred and sixty miles distant! It was on that occasion that Governor Levi P. Morton, upon the declaration being made that the exposition was open, turned a golden key by which four cannons were instantaneously fired in the four quarters of the republic, one in Augusta, Maine, one in San Francisco, one in front of the public building at St. Paul, another in the public Park in New Orleans. This discharge of cannon was accomplished by a current of electricity generated at Niagara, and transmitted over the lines of the Postal Telegraph Cable Company. Later, in the course of the exposition, a message was sent all over the world, and returned to New York within fifty minutes. The message read: God created nature's treasuries; science utilizes electric power for the grandeur of the nations and peace of the world. The reply, also sent over the world, was: Mighty Niagara, nature's wonder, serving men through the world's electric circuit, proclaims to all people science triumphant and the beneficent Creator. The distance traversed by each of these messages was about twenty-seven thousand five hundred miles, touching nearly all the great centers of population in the world, and that within the almost incredible time of fifty minutes!