National Geographic : 1920 Jan
Optical glass, as taken fromeruibte, readyfor shaping and grinding. The End of a Foreign Monopoly Optical glass assumed, over night, a new and terrible importance, when the world went to war with Germany. For the world, so far as it knew, was largely dependent on Germany for the higher grades, dependent on an enemy for the very eyes of fleets and armies-periscopes, aeroplane camera-lenses, searchlights, field glasses, range-finders. And optical glass cannot be made over night. But it so happened that a favorite dream of our founders was of emancipation from foreign control of raw material; and for some years we had been quietly experimenting. When war came, we were ready-and ready not merely with methods and formulae, but with a modern and complete glass plant-the first in America for making optical glass on a commercial scale. Events have shown its immeasurable value in wartime. And it will prove no less a factor in the arts of peace. For with our own optical glass to work with, developing various types as required, we can carry forward faster and more surely those refinements of lens and in strument making which to science mean knowledge, and to humanity a richer, safer life. Write for literature on any optical product in which you are interested. BAUSCH & LOMB OPTICAL COMPANY . . . ROCHESTER, N. Y. Makers of Eyeglass and Spectacle Lenses, PhotographicLenses Microscopes. Balopticons, Binoculars and Engineering and other Optical i struments thatees may see -b- etter and farther "Mention The Geographic-It identifies you"