607. English artists were employed in Scotland during this century. Switzer, Lawrence, and Langley mention, in their works, that they were frequently sent for into Scotland to give plans of improvement. Switzer appears to have resided a considerable time in Edinburgh, as he there published, in 1717, a tract on draining, and other useful and agricultural improvements. The Earls of Stair and of Haddington (who wrote on trees), both great planters, about this time, probably consulted them; as would, perhaps, Fletcher of Saltoun, the proprietors of Dundas Castle, Barnton, Saughton Hall, Gogar, and particularly Craigie Hall, a residence laid out with much art and taste, and next in rank in these respects to Hatton. New Liston, Dalkeith House, Hopetoun House, and various other places near Edinburgh, are also in Switzer's style. New Liston and Hopetoun House, planted, we believe, from 1735 to 1740, were probably the last considerable seats laid out in the ancient style in Scotland.