Another domain of electric enterprise of the greatest value for the country at large is the increasing use of electricity in medicine. The most conspicuous element in this is the wide-spread acceptance of the X-ray as a necessary tool of the medical profession. Newspapers and magazines were full of the remarkable X-ray achievements of surgeons in charge of the various European war hospitals. Those, of course, were spectacular instances, but it should not be forgotten that every day, in our great hospitals, the X-ray is proving itself almost indispensable in the examination of the sick and injured. Besides utilizing X-ray in the diagnosis of disease, the rays themselves are employed in treatment of cancer and skin diseases. The oculist, the dentist, indeed medical specialists of all kinds, are coming to recognize the immense aid that electricity can give in its various forms and applications. [Illustration: THE GREAT PRESS ROOM OF “THE NEW YORK TIMES” IS ALL ELECTRICALLY OPERATED] Electric Vehicles. The electric truck has already demonstrated itself as a safer and less expensive rival of the gasoline delivery truck in many kinds of service. In the boroughs of Manhattan and the Bronx alone, in New York City, there were more than 2,000 such trucks in operation in 1916. Counting both pleasure and business vehicles, the borough of Manhattan boasted about 2,500 storage-battery driven wagons in active use. It is rather interesting to note that Chicago operates many more electric pleasure cars than New York, while New York does far more of its business by means of the electric vehicle. Recently, there was established in New York an electric co-operative garage, the joint enterprise of the electric passenger car manufacturers and an electric company. It was believed that by providing proper and adequate facilities for garaging electric pleasure vehicles the use of passenger-electrics in New York City would be greatly increased. Electricity and the Home. In emphasizing the important part which electricity plays in the business of a great metropolis, the home should not be forgotten. It is now possible, by means of electric appliances, practically to eliminate all drudgery from housework. The use of many of these domestic machines is familiar to all: vacuum cleaners, washing machines, fans, and the more usual electric cooking devices. Within the next decade, one looks to see a remarkable advance in this direction. One anticipates the more extensive use of electric refrigeration and other electric labor-saving devices, to the great improvement of city homes, making them pleasanter and more healthy as toilsome operations are done away with. And it must not be forgotten that the city home, like the country home, is the backbone of the well-being of the community. Electricity can have no greater mission than improving, strengthening and upbuilding good homes. [Illustration: ELECTRIC TRAIN CHART AND SWITCH CONTROL] [Illustration: SUBWAY CONSTRUCTION