John Claudius Loudon (8 April 1783 – 14 December 1843) was a Scottish botanist, garden designer and author. He was the first to use the term arboretum in writing to refer to a garden of plants, especially trees, collected for the purpose of scientific study. He was married to Jane Webb, a fellow horticulturalist, and author of science-fiction, fantasy, horror, and gothic stories. Early life Loudon was born in Cambuslang, Lanarkshire, Scotland to a respectable farmer. Therefore, as he was growing up, he developed a practical knowledge of plants and farming. As a young man, Loudon studied biology, botany and agriculture at the University of Edinburgh. When working on the layout of farms in South Scotland, he described himself as a landscape planner. This was a time when open field land was being converted from run rig with 'ferm touns' to the landscape of enclosure, which now dominates British agriculture. Loudon developed a limp as a young man, and later became disabled with arthritis. He undertook a second Grand Tour of Europe and also visited the Near East. In 1826, disabled by rheumatism and arthritis, he had to endure an amputation at his right shoulder after a botched operation to correct a broken arm. He learnt to write and draw with his left arm and hired a draughtsman to prepare his plans. At the same time he cured himself of an opium habit that had been keeping the pain at bay. Work Horticultural work Around 1803, Loudon published an article entitled Observations on Laying out the Public Spaces in London. It recommended the introduction of lighter trees rather than those with dense canopies. Loudon was attacked by rheumatic fever in 1806 which left him disabled, but this illness did not affect his writing. As his condition deteriorated over time, Loudon was forced to use the services of a draughtsman and other aids. Beginning in 1808, Loudon was employed by George Frederick Stratton to landscape and farm his property, Tew Park, where he was able to set up a school for young men to be instructed in theory of farming and modes of cultivating the soil. Loudon's design was a model of efficiency and convenience reflected in elegance and refinement. In conjunction with the goals of diffusing agricultural knowledge, Loudon published a pamphlet entitled The Utility of Agricultural Knowledge to the Sons of the Landed Proprietors of Great Britain, &c., by