Page:Popular Science Monthly Volume 11.djvu/194

182 double hands before described, this Washington noon signal may be used to control a clock by the Bain or some other system in a house, or manufactory, or railway-station, and a general acceptance of Washington (or any other) standard time by which to regulate the running of railway-trains or other affairs is rendered easy and safe if it is desirable to make this change.

The advantages of a general use of this system are very great, and will be evident on a slight consideration. The arrangements proposed by the Naval Observatory are not intended to conflict, and they do not conflict, with others more local adopted and successfully carried on by various observatories.

Among these, the more prominent are the Harvard College Observatory, which, under the direction of the late Prof. Winlock, instituted a system of time-distribution to the various railways of Boston and vicinity, which has been for some years in successful operation: the Allegheny Observatory, of Pittsburg, which, under its director, Prof. Langley, has also for some years furnished standard time to the Pennsylvania and other railways; as well as the observatories of Cincinnati, Albany, and others.

The coöperation of all these institutions will undoubtedly result in providing for a more extensive and better-organized system than has hitherto been possible, and some of the benefits to be derived from such a coöperation have been pointed out. The establishment of time-balls at our various seaports, Boston, Baltimore, Philadelphia, Norfolk, Charleston, Savannah, New Orleans, etc., is most important, and insurance companies, shippers, and owners of vessels, could well afford to bear the small necessary expense, which would be more than repaid to them by the additional safety given to navigation.

The extension of a system such as exists in New York to the various seaports of the country could not but secure a greater safety to sea-going vessels and an increased security to the traveling public, two objects worthy of all attention.