Macadam
JOHN LOUDON, a Wilson President. On March 4, 1913, Scotch engineer, inventor of the system the President appointed McAdoo Secreof road-making known as "macadamiz- tary of the Treasury, a post which he ing"; born in Ayr, Scotland, Sept. 21, held until his resignation in 1919. Mc- 1756. He began in 1810 to make experi- Adoo's task of managing the nation's ments in the construction of roads, which finances during the struggle with Gerbecame a passion with him. In 1815 he many was performed with the same unwas appointed surveyor to the Bristol tiring energy which had characterized Turnpike Trust, and remade the roads his private enterprises. The floating of there cheaply and well. Impoverished the "Liberty Loans" and the huge sums through his labor he petitioned Parliament, and he was voted $50,000 and appointed Surveyor-general of Metropolitan Roads in 1827. He declined knighthood. He published "A Practical Essay on the Scientific Repair and Preservation of Public Roads" (1819); and "Observations on Roads" (1822). He died in Moffat, Dumfriesshire, Nov. 26, 1836.