The choice of trees, too, for planting on wind-swept ground is a matter of far more moment than is generally supposed, for that there are certain species of trees peculiarly suitable for withstanding prolonged storms is well known to those who have had to do with the forming of woods and plantations at high altitudes. The size of trees planted has also much to do with the after success of the woods, and it may be well at the outset to say that these should not exceed about 12 in. in height on the most favoured sites to about from 6 in. to 9 in. on the more exposed grounds. They should also be properly prepared by frequent careful transplanting for the situations they are intended to occupy, as it can hardly be expected that a young and immature tree can, after being brought from a probably sheltered lowland nursery—as nine-tenths of those in this country are—to a high piece of ground, where at times the wind blows with terrific fury, and where one can scarcely stand upright, have sufficient stamina to stand against such odds and difference as must and do exist between the two points at present under consideration. Sometimes it is well to trench over a piece of ground on partially-exposed land, and insert therein for a couple of years before the proposed plantation is to be formed, the young trees intended for planting out. This has a wonderful effect in hardening and inuring them to severe cold and a wind-swept situation. By forming a nursery of young trees by the sea-coast, I have known great success attend the formation of woods and plantations in maritime situations, and like results are sure to attend the planting out of trees in any uncongenial and unfavourable situation. About the trees to be planted, being such as are sufficiently hardy to withstand prolonged storms, we will now say a few words. In the outer line—or, rather lines—the Scotch, Austrian, and Corsican Pines (_Pinus sylvestris_, _P. austriaca_, and _P. laricio_) are of first value, since they are able to stand against the storms of the hillside and produce a great amount of shelter to other less hardy kinds. It is often only necessary to make a wind-barrier, as it were—that is, to plant well-tried evergreen kinds, from which shelter can be obtained next the most windy position, then to follow up with other kinds that are second hardy in nature, and so on inwards; while, in the very centre of the plantation, almost any kind of tree can be used. The =Austrian Pine= has been successfully planted at high altitudes, and in the most exposed situations, and on the Continent it has proved itself of great value for breezy sites and maritime situations.