SECTION III. 



401 



to repeat it here ; but it is particularly deserving of the attention of the 

 reader. I have mj^self made several experiments in order to compare 

 the different progress of trees, both young and old, that had their tops 

 lightened with that of others in which the tops had been left untouched, 

 and the results have been similar to those experienced by Miller ; only, 

 in the latter, the results were more striking, on account of the more 

 advanced age of the trees. But I feel peculiar satisfaction in being 

 able to strengthen my own opinion by the authority of so eminent a 

 phytologist, whose great work cannot be too frequently recommended 

 to the young planter's notice. It is most particularly valuable in the 

 edition of the late Professor Martyn of Cambridge ; who, besides 

 nearly doubling the whole matter contained in the original work, has 

 added some new and valuable articles, and brought the history of 

 the plants enumerated down to the present times. 



Note VIII. Page 72. 



If the reasonings in the foregoing part of this Section be well 

 founded, the proposition in question here must necessarily be true in 

 respect to trees removed from exposed to sheltered situations, as 

 well as its converse ; but probably there is no one who has verified it 

 by experiment. 



In 1818, I transferred some Beeches, Oaks, Witch Elms, Limes, 

 and Sycamores, from an exposed situation, in order to form a close 

 screen of some size in conjunction with Underwood, which screen 

 or plantation was accordingly executed. These trees possessed, in a 

 very considerable degree, what has been called in the text the pro- 

 tecting properties, so that they might with great advantage have 

 been set out in the open park. In 1826, at the distance of eight 

 years, it was quite visible that these properties had greatly dis- 

 appeared, and that the non-protecting were about to be superinduced 

 in their stead. In the spring of the year last mentioned, I removed 

 to an exposed situation in the park, a few of the Oaks and Beeches 

 from the centre of the wood, where the warmth was the greatest, 

 and where they had begun to be drawn up ; and I am persuaded 

 that, in ten or twelve years more, the former properties will return, 

 and be as fully developed as they were in the beginning. 



In 1809, I took two fine Sycamores about five-and- twenty feet 

 high, amply provided with the protecting properties, and fitted for 

 situations of the greatest exposure, and removed them into the centre 

 of a close wood. Being well supplied with roots, they were soon 

 established in the ground, and began to push vigorously towards the 



2 c 



