II BUSINESS PERSPECTIVES IN THE HISTORY OF COMMUNICATIONS
III MEASUREMENT OF THE SPEED OF COMMUNICATIONS – METHODS AND SOURCES
IV OVERSEAS MAIL AND SPEED OF COMMUNICATIONS BEFORE 1815
The Great Innovation of Sailing on Schedule
Wind vs. Steam – a Decade of Struggle
Business Information and the Telegraph
VI THE WEST INDIES AND SOUTH AMERICA
Overnight Change from Sail to Steam
International Competition and the Influence of the Telegraph