Abstract :
A new street lighting system has been installed on two converging streets in Cheney, Washington, so as to form an arrowhead of light, pointing in the direction of Spokane. Aviators, when flying at night from the West Coast to Spokane, are able to pick up the lights of Cheney and by following the direction of the guiding arrow, find it a simple matter to locate their destination at the large landing field at Spokane.
