The Baltimore & Ohio railway was to cross his property, and, after various inventions aiming to do away with the locomotive crank and thus save two-fifths of the steam, in 1830 he designed and constructed (largely after plans made two years before) the first steam locomotive built in America; though only a small model it proved the practicability of using steam power for working that line.
The king himself as a Roman Catholic secretly opposed and also doubted the wisdom and practicability of this "thorough" policy of repression.
Ultimately the question resolves itself into one of commercial practicability.
Access to Chitral from the north is therefore but a matter of practicable tracks, or passes, in two or three directions, and the measure of practicability under any given conditions can best be reckoned from Chitral itself.
In 1886 experiments were conducted, under certain restrictions, and the plant was grown in Norfolk, Kent and other counties with sufficient success to prove the entire practicability of raising tobacco as a commercial crop in England.