S24 OBSERVATIONS ON THE DISEASES, &c. 



two feet in circumference. These are now fine thriving trees, 

 and the cicatrices hardly discernible. 



A Horse-Chesnut headed down has produced, from its 

 hollow stump, four fue shoots, one of which is cut down ; the 

 other three are upwards of thirty feet high, and one of them 

 is twenty-six inches in circumference. Two of the remaining 

 three are to be cut down, leaving only one to form the body 

 of the tree. A lime, whose hollow part is eleven feet high, is 

 also filling up ; the tree is a foot in diameter. A decayed 

 part, four feet high and twenty eight inches broad in a large 

 elm, is now filling up rapidly with sound wood. About two 

 feet and a half in length on one side, which was for some time 

 left to nature, still cortinued to decay till the composition was 

 applied: New wood and bark are now forming. An elm, at 

 the back of the old fruit-room, near the garden wall, which 

 was entirely hollow, was also headed down : The new head 

 now spreads about twenty-four feet, and is eighteen feet high. 

 Another large hollow elm near the last was headed down ; it 

 afterwards produced a shoot sixty feet high, and three feet 

 and a half in circumference ; the hollow was upwards of two 

 feet in diameter. There are a great many other elms, some 

 of which h^d wounds ten feet long and two feet broad, now 

 entirely filled up ; besides many sycamores, oaks, and other 

 forest-trees, all restored to a flourishing state, by having the 

 dead wood cut out and the composition applied. An oak that 

 was headed down about six vears ago is represented in plate 12, 



In hollow trees, the rotten and decayed wood must be cut 

 out at different times, as the new wood comes in contact with 

 it ; but great care must be taken not to cut out too much at once, 

 but to leave enough to support the tree and prevent it from be- 

 ing blown down by high winds, till the new is strong enough 

 for that purpose : The remainder may^ then be cut out. 



A number of instances of the success attending mv me- 

 thod of pruning and training might be adduced; but I shall 

 notice only the following. 



Mr. Aberdeen, gardener to John Sullivan, Esq. at Rich- 

 ings near Windsor, has followed it for some time with great 

 success both in the house and on the natm^al wall. 



Having heard for several years of the very fine and large 

 crops that were produced in the forcing houses belonging to 

 John Julius Angerstein, Esq. at Woodland House, on Black- 

 heath, I was induced to take a journey thither, in company with 

 John Wedgwood, Esq. to see what method was pursued to 

 obtain such crops. On enquiry, Mr. Stuart, the gardener, 

 candidly told me, that several years ago he had been at Ken- 



