One of the British steps in mobilization of national resources for war was to call on all citizens of the empire to contribute their field glasses and telescopes for use at the front. Almost 30,000 glasses were found acceptable among those offered. They Included all sorts, from the highest-grade binoculars suitable for artillery range finding to old-fashioned telescopes that are used to distinguish hostile from friendly airplanes. The glasses were contributed chiefly by hunters and followers of hor.se racing. They came from the remotest parts of the empire, even from Malaysia.