HAS of launching site seen from observation balloon going up. AIR TO AIRs of squadron of Curtis Jennies in flight. FOLLOW MLS of Fairey "Campania" seaplane flying past camera, circling over ships in harbour. Shots of flyers saying farewell to crew of RE8, aircraft taxiing away, taking off in the distance. MS of group of British and French airmen near Letord biplane bomber, PAN of aircraft. Shots of crashed SE5, men collecting debris. Shot of Canadian men milling about battlefield railway, MCS of first aid men loading casualties on stretchers on flat railway car. Shots of battlefield railway train pulling in, first aid men unloading stretchers from train. CSs of chaplain checking on wounded.