The following account of the experiments made by the Dukes of Athol, on the Highlands of Scotland, is so encouraging and deeply interesting, that, although long, I insert it, hoping the example may be followed in appropriate positions in this country: "The estates of the Dukes of Athol are in the north of Scotland, in the latitude of nearly 50° north. Between 1740 and 1750, James, duke of Athol, planted more than twelve hundred Larch-trees in various situations and elevations, for the purpose of trying a species of tree then new in Scotland. In 1759 he planted seven hundred Larches over a space of twenty-nine Scotch acres, intermixed with other kinds of forest trees, with the view of trying the value of the Larch as a timber tree. This plantation extended up the face of a hill from two hundred to four hundred feet above the level of the sea. The rocky ground of which it was composed was covered with loose and crumbling masses of mica slate, and was not worth above £3 a year altogether. Before he died, in 1764, he was satisfied of the superiority of the Larch as a timber over other firs, even in trees only eighteen or nineteen years old. His successor, John, duke of Athol, first conceived the idea of planting Larch by itself as a forest tree, and of planting the sides of the hills about Dunkeld. He planted three acres with Larches alone, at an elevation of five or six hundred feet above the level of the sea, on a soil not worth a shilling an acre. He also planted over four hundred acres on the sides of hills before his death, in 1774. His son, Duke John, continuing the execution of his father's plans, had planted in 1783 279,000 trees. Observing the rapid growth and hardy nature of the Larch, he determined to cover with it the steep acclivities of mountains of greater altitude than any that had yet been tried. He therefore inclosed a space of twenty-nine acres on the rigid summit of Craig-y-barns, and planted a strip entirely with Larches among the crevices and hollows of the rocks, where the least soil could be found. At this elevation none of the larger kinds of natural plants grew, so that the grounds required no previous preparation of clearing. This plantation was formed in 1785 and 1786. Between that year and 1791 he planted six hundred and eighty acres with 500,000 Larches, the greater part only sprinkled over the surface, on account of the difficulty of procuring a sufficient number of plants. Besides a plantation of seventy acres for the purpose of embellishment, he had, in 1799, extended his plantations of Larches over an additional space of eight hundred acres, six hundred of which were planted entirely, though thinly, with Larch. These took 800,000 plants. "Observing, with satisfaction and admiration, the luxuriant growth of the Larch in all situations, and its hardihood even in the most exposed regions, the duke resolved on pushing entire Larch plantations still further to the summit of the highest hills.