The consequence of that constant acceleration is that new developments and achievements succeed each other with bewildering rapidity. Hardly have we got accustomed to the idea of telegraphy without wires when radio-telephony becomes an accomplished fact, and within a few years there is a rich crop of listeners with their wireless receiving sets counting by the million. An entirely new form of publicity comes into being, and a speaker on Savoy Hill is able to speak to an audience of millions and sway them by his voice more effectively than he can do by cold print in the newspapers. And this is only a beginning. Communication will become closer and more general. Already the earth is a network of lines and cables, linking continent to continent. Soon a speaker will have the earth for his sounding board and his hall of audience, and the privilege of addressing the human race will be prized above a coronation. Human sight and hearing will extend its range enormously, not only in space, but in time also. For the cinema film and improvements in the recording of sound will make it possible to make minute and comprehensive records of past sights and sounds for future reproduction, so that nothing of any value may be lost. Other progress will go hand in hand with the rapid development of “signalling” communications, such as telegraphs and the like. The transport of goods and passengers will rapidly gain in speed, comfort, and safety, until the whole earth becomes accessible to all. It will not only become accessible, but also habitable. The tropics, the original cradle of the human race, will once more be reclaimed from our most formidable enemies of the insect-world and the ever-present bacterium. The higher organism will assert its much-contested supremacy over those minute organisms which owe their influence to mere numerical superiority. Our descendants will pay an afternoon’s visit to Timbuctoo or Mount Ararat, much as we should visit the British Museum or the Lake District. Everybody will be a globe-trotter, but the “globe” will not be confined to the ordinary tourist resorts. It will include every part of the world, even the Poles. And wherever they go they will find friendly voices, long familiar in the home through the service of radio-telephony. There will, of course, be an international auxiliary language, understood everywhere, a language artificial in its structure――every literary language is largely artificial――but utilizing those roots which have already become part and parcel of all cultured languages. This will not mean the displacement or loss of native languages which have proved their title to survival by their literature.