11. Italian astronomer Giovanni Schiaparelli announced in 1877 that he had spotted some sort of channels _ possibly artificial waterways . 12. The "'Panama Canal "'( ) is an artificial waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean. 13. The ore extracted there was conveyed to the smelters in Halsbr�cke on an artificial waterway , the " Churprinzer Bergwerkskanal ". 14. The following list provides a summary of known navigable waterways and other types of constructed or artificial waterways in Australia. 15. The canal is unusual amongst Britain's artificial waterways in having a strong flow ( up to 2 miles per hour ). 16. Bolivia counters that the Silala is not a natural river but springs collected into irrigation ditches to form an artificial waterway . 17. The Bridgewater Canal, Britain's first wholly artificial waterway , was opened in 1761, bringing coal from mines at Worsley to central Manchester. 18. The Japanese government administers Tsushima Island as a single entity despite the artificial waterways that have separated it into two islands. 19. In 1879 the Patterson River, an artificial waterway , was cut through the swamp to the coast as part of the drainage program. 20. The "'Wabash and Erie Canal "'was a shipping canal that linked the Great Lakes to the Ohio River via an artificial waterway .
