SPACING GOLD, TOURISM. Tne Spacing Guild had a very profitable sideline as a travel agency, a fact often lost in the sweep of Imperial history. The revenue from tourism was never negligible, and during fee Atrtidean empire, when pilgrimages were promoted and urged on the faithful, the income was astounding. The accompanying illustration is of an advertising leaflet distributed by the Spacing Guild's Department of Tourism during the latter part of the reign of Letp II. It is representative of the Guild's publicity, especially that aimed at the lesser Houses and commoners. Similar brochures were readily available at all levels of Guild service, and included local timetables, prices, etc., along with a healthy though subtle dose of Guild propaganda. GOLD LINE Heighliners, the acme of modem travel, make regular passages on the indicated routes. See your local DOT office for schedules and rates. Follow the footprints of the Zensunnit/" ); enjoy nature at its finest ( ($ , v\j); sec the best corrida (*CO or arena ( O ) in the Empire; or just relax (Sg ) and enjoy the entertainment ( (c) ,(r)S>)! The Spacing Guild Department of Tourism presents THE COLD LINE Special round-trip rates: buy outward passage to two or more stops at normal rates, and pay half-price for the return trip. See the most magnificent architecture ever erected ( & ); visit the greatest stores of knowledge (( ) ever assembled! SPICE EFFECT ON POLYMATHEMATICAL DEVELOPMENT. To understand the remarkable changes which occurred in the pursuit of human knowledge at the times of the Butlerian Jihad and the introduction of spice, it is necessary to consider the origins of poly-mathematict. and the nature of polymathematics before spice. According to documents from Terra found at Dar-es-Balat, the ancient method of education (before the a, fi, and -y leveling) involved a chaotic separation of knowledges.