rRTMNG FOREST TREES. 553 
them, tliey therefore do not require a very airy situation ; their 
roots are strong, hut not so strong as some of tliose of the last divi- 
sion, and therefore seem to require rather a lighter soil ; they 
must be supported or nailed against a wall. 
The fifth division consists of Rosa semperflorens and indica. The 
sudden and rapid way in which these roses send forth their shoots 
immmediately on a change from cold to heat, points them out as 
growing in their wild state on mountains covered with snow a part 
of the year, and like other natives of such places, with rapidity, 
taking advantage of an interval of vvannth to grow hloom and ripen 
their seedv 
I shall be highly gi'atified if any of the foregoing observations 
should tend to make any of vour readers better acquainted with the 
nature of some of the species of this genus of plants, which certainly 
consists of the most beautiful, elegant, and lovely flowers in existence, 
and which in every country, where they will grow, are universally 
esteemed. 
J. T. 
ARBORICULTURE. 
ARTICLE XL— ON PRUNING FOREST TREEJil, 
COMMUNICATED BY MR. WITHERS. 
As SO great a difference of opinion exists on the pruning and thinning 
of Forest Trees, I think I cannot render a more acceptable service 
to your readers than to communicate the opinions of my venerable 
friend, Mr. Sandy, on this important subject. * This gentleman 
superintended the planting of upwards of one thousand acres of land 
foV Mr. Coke-, and had the sole care of the trees for a period of more 
than thirty years. Under his judicious management these planta- 
tions attained a growth, and are now yearly producing a profit scarcely 
equalled, perhaps, taking all circumstances into consideration, by any 
plantation of the same age in the kingdom. Mr. Sandy's opinions 
arCj therefore, the result of long and successful experience, and as 
such are deserving the serious attention of all planters. 
W. Withers. 
Holt, March 'Tth, 1832. 
* This letter of Mr. Sandy's Landscape Gardens, Wells, Norfolk, is inserted in 
the Arborknltuml Transactrons of Ireland. 
