Laakso, Seija-Riitta, Across the Oceans, Development of Overseas B ...Laakso, Seija Riitta, Across the Oceans, Development of Overseas Business Information Transmission 1815 1875, 2007, Dissertation an der Universitt von Helsinki, 459 S., mit Beleg Abb. und Karten, sehr gut erhalten mit Widmung fr Friedrich Meyer. Aus der Verlagsankndigung: In the early 19th century, the only way to transmit information was to send letters across the oceans by sailing ships or across land by horse and coach. Growing world trade created