SHORTLY after the Great War, Dr. König, whose association with Messrs. Carl Zeiss of Jena eminently fitted him for the task, published his book on the telescope and range-finder. It dealt particularly with the more important fighting service optical instruments such as binoculars, sighting telescopes, submarine periscopes and range-finders, with the intricacies of which so many people through necessity had become familiar.
Die Fernrohre und Entfernungsmesser
Von Dr. Albert König. Zweite Auflage. Pp. v + 242. (Berlin: Julius Springer, 1937.) 24 gold marks.