80 ON PLANTING EXPOSED OR BARREN GROUND. 
The following kinds are the first to make an appearance and 
a rapid growth in the prevailing winds of a high altitude :— 
Hoary Poplar, Goat Willow, Wild Cherry, 
Trembling Poplar, Mountain Ash, 
Sycamore, Service Tree, 
Weeping Birch, Alder, 
among which should be interspersed the native Scotch pine, 
with its varieties Montana, Mugho, Pinus eembra, and Aus- 
triaca. 
I have known several residences in the Highlands where it 
was difficult to establish shelter. At all of them one or other 
of the trees named was esteemed as the hardiest ; but perhaps 
at none of them were all the sorts experimented on or tried. 
For instance, I lately visited a summer residence or lodge, 
situated at an altitude of 1200 feet. Here the mountain ash 
grew wild in great vigour ; the largest trees in the neighbour- 
hood consisted of this species, and their round heads standing 
thirty feet in height were composed of a thicket of branches 
giving no indication of the prevailing wind. Their berries in 
autumn are very ornamental, and attract singing-birds, and 
here this tree was pronounced to be the “sheet-anchor,” or 
chief reliance for the protection of all other vegetable produc- 
tions. 
In the planting of bare moorland at a great altitude, I have 
found no plant superior to the native Highland Scotch pine. 
Its success depends greatly on the quality of plants employed. 
In no case of rough exposures should plants be used that have 
stood more than one year in the nursery lines after being 
transplanted. Where the heath is quite short, one-year seed- 
ling plants transplanted into nursery lines for one year is the 
most reliable sort. If the heath is too rank for such, these 
plants should be transplanted a second time into nursery 
.lines ; and in all cases for such exposures, the plants in the 
nursery lines should have the advantage of plenty of room in 
well-exposed nursery ground. The same treatment should be 
bestowed on larch and all the other pines intended for such 
. exposures. 
