TechnologyZeppelin, Aeroplane and ParachuteThe Present Status of War by and on the German DirigibleBy Carl Dienstbach on December 22, 1917AdvertisementABOUT THE AUTHOR(S)Recent Articles by Carl DienstbachChristmas in the Air, Benzine Tractor, for Railway and Road Service and moreAircraft Artillery and Bomb-DroppingAn American Aeroplane with Adjustable Wings