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TELEVISION 345
the laboratory finally learns to combine visual impressions in the same manner that sound impressions are moulded into a single audio-frequency, great progress will have been accomplished and the end of experiment will be at hand. There are some enthusiasts of television who claim that successful home installation is a matter of but months. However, in more conservative quarters it is held that thoroughly satisfactory results in the home will come, more likely, within two to five years. There are still others who protest that the development has yet to reach the comparative excellence attained in broadcasting when crystal sets were employed. Dr. Frank P. Jewett, president of the Bell Telephone Laboratories, and vice-president of the American Telephone and Telegraph Company, recently made the statement:
At present television is entirely out of the picture except as an interesting scientific toy. It is wasteful, to the last degree, of communication channels. It is inherently, horribly expensive.
Thus at least one observer feels that the innovation is still in its infancy. Plate VIII shows television receiving apparatus. Another, Professor J. H. Morecroft, of the School of Engineering of Columbia University, is of the opinion that practical television will not be realized for many years. Yet the new science has opened wide vistas for experimentation, and we have seen such miracles in the past few years that public expectancy of an early commercialization is not surprising. The obstacles to satisfactory transmission and reception of instantaneous light are many, however, and until they have been overcome there will be few, if any, commercial television receivers. It is only the scientist and experimenter, with a wide knowledge of radio, who can obtain worth-while results with current equipment.