sentences:  The landscaping works were finished by 1801 and replaced an older style, now represented by the replanted Belvedere Woods.The gardens were laid out by John Tweedie (1775–1862), a native of Lanarkshire who also worked at Blairquhan Castle in 1816, Castlehill in Ayr; in 1825 he emigrated to Argentina where he became a leading agriculturist and plant-hunter.At their peak the policies (from the Latin word ‘politus’ meaning embellished) and gardens of the estate covered 1346 acres (1500 Scots acres), made up from of grassy glades, 650 of plantations, of gardens, etc.