The term "landscape architecture" was first used by Gilbert Laing Meason in his book "On The Landscape Architecture of the Great Painters of Italy" (London, 1828). Meason was born in Scotland and did not have the opportunity to visit Italy, but he admired the relationship between architecture and landscape in the great landscape paintings and drew upon Vitruvius' "Ten Books on Architecture" to find principles and the relationship between built form and natural form. The term was then taken up by John Claudius Loudon and used to describe a specific type of architecture, suited to being placed in designed landscapes. Loudon was admired by the American designer and theorist Andrew Jackson Downing and landscape architecture was the subject of a chapter in Downing's book "A Treatise on the Theory and Practice of Landscape Gardening, Adapted to North America" (1841).