At head of title: <Communicated to the Council and the members of the League.> Official no.: C 97. M. 44 1935. VIII. Geneva. February 1st, 1935. League of nations. Organisation for communications and transit. Air transport co-operation committee. Special sub-committee to study the question of the constitution and operation of a main network of permanent air routes.

Series of League of nations publications. VIII. Transit. 1935. VIII. 1.

"The provisional edition of the report dated December 28th, 1933, was circulated to European countries only." It appears as part one of this final edition.