Changes

*''Indian Airways'' by Stephen H Smith(Stephen Hector). A work in three volumes published 1926-1930 detailing the first and special flights within and through India up to March 1930. Available at the British Library: UIN: BLL01003423426:''The World Flyer’s Flier’s Danger Zone'' by Stephen H. Smith. 1927. Covers the hazards of mail flights south east from Calcutta across the Bay of Bengal to Burma and Thailand. Available at the British Library: 2nd edition 1927 UIN: BLL01003423427