ZEPPELIN AWAITS SOVIET PERMISSION FOR ROUTE TO TOKIO; Date of Departure Depends on Approval of Alternative Courses Over Siberia. ECKENER READY TOMORROW He Tells Crew to Prepare to Start Then or Wednesday-- Ship in Condition. ARDUOUS FLIGHT FORESEEN But Engineers Declare Motors Can Run 1,000 Hours and No Trouble Is Expected. Calls Undertaking Difficult. Rest Refreshes Crew. ZEPPELIN AWAITS SOVIET PERMISSION
Dr Eckener awaits Soviet permission to fly over Siberia; preparations for Tokio trip continue