260 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 
Wellingtonia (Sequoia gigantea) is also an excellent tree for 
chalky soils, in which it grows with great vigour and a very 
healthy appearance. 
Gravelly and Sandy Soils.—The Corsican pine is an excellent 
tree for planting on gravelly soils, and some of the finest specimens 
in this country are found at Penrhyn Castle, in North Wales, 
where it grows quickly to a large size in shingly gravel, and the 
timber produced in such a soil is of good quality. Some years 
ago several trees of this kind were felled, and the timber used 
for various purposes on the estate with the most satisfactory 
results. I have always noticed its preference for deep gravelly 
soil, or that of a loose porous nature. One of the trees referred 
toe growing on such soil, had attained a height of 60 feet in 
thirty-four years, while the butt end was 32 inches in diameter, 
and at 9 feet it girthed 6 feet 2 inches. The butt was free of 
branches for 18 feet, and straight as an arrow, and contained 
exactly 40 cubic feet. This fine tree was growing on the margin 
of a disused gravel pit, with hardly 3 inches of decomposed 
vegetable matter on the surface. Other examples of an almost 
similar kind might be given, but suflicient has been said to prove 
that the Corsican pine is peculiarly suitable for planting on pure 
gravel. The Scots pine on poor thin gravelly soils reproduces 
itself so freely from seed, and grows with such vigour, that it 
may be considered an eXtra well-suited tree for the afforesting of 
thin gravelly commons and similar tracts of land. The Pinaster, 
or Cluster Pine, is a most valuable tree for planting either in 
sand or gravel, as its growth in these in many parts of the 
country clearly points out. The great value of this tree in 
reclaiming sandy tracts, both at home and abroad, has been so 
often described that further reference here is not required. The 
Aleppo pine is a good companion to the Pinaster, and grows 
with greatest freedom in a sandy or gravelly soil, within the 
influence of the sea. Gravelly soil also suits the Weymouth pine 
well, for we have it growing to a large size, and looking well upon 
it here. Judging from the specimens we have cut up, the timber 
appears to be of excellent quality, and largely impregnated with 
resin. 
Beech and oak both produce a fair quantity of timber on poor 
gravelly soil. ‘The former in particular grows here with unusual 
freedom on rough gravelly soil, where hardly half a foot of loam 
overlies the gravel. To the south of Holwood House, in Kent, 
