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considennfjf these different opinions, observes, respecting those of Sang 

 and Yule in particuhir, that tlicy seem to he Ibundcd on the idea, that 

 the taproot is of material importance to full-grown trees, and that, when 

 that is once cut off, the plant has not the power of renewing it. " That 

 the taproot (he observes) is of the utmost consequence, for the first three 

 or four years, is obvious from the economy of nature, at that age of the 

 plant, perhaps for a longer period ; but that it can be of no great con- 

 sequence to full-grown trees, appears highly probable from the fact, that, 

 when such trees are cut down, the taproot is seldom to be distinguished 

 from the others." — p. 572. Forsytii, an arboriculturist of considerable 

 experience, has distinctly shown by experiments, that, trees have the 

 power of renewing their taproots ; and he further proves the great ad- 

 vantages, that are derived from cutting down trees, after two or three 

 years' planting, in order to form healthy and vigorous woods. He 

 transplanted, as he states, a bed of oak-plants, cutting the taproots near 

 to some of the side roots, or fibres springing from them. In the second 

 year after, he headed down the one-half of the plants, and left the other 

 half to nature. In the first season, those headed down made six feet 

 long, and upwards, and completely covered the head of the old stem, 

 leaving only a faint cicatrix, and produced new taproots, upwards of 

 two feet-and-a-half long. That half of the plants, which was not 

 headed down, was not one-fourth part of the size of the others. Some 

 time after, when he wrote the account, one of the plants cut over was 

 found to be eighteen feet high, and fifteen inches in circumference, at 

 six inches from the ground ; while one of the largest of the plants not 

 cut over, measured only five feet-and-a-half in height, and three inches 

 and three quarters in circumference. — See Treat, on Fruit Trees, p. 144. 

 On considering the whole question, it appears to me, that, as the pine 

 and fir species receive the greatest check from transplanting, and as, 

 when planted at four and five years old, they do not readily grow to 

 timber, it is clear, that they should always be sowed, or at least planted 

 very young, in high and cold regions. Respecting all Trees that stool, 

 I entirely concur in opinion with the intelligent author of the Encyclo- 

 pedia of Gardening, that, with any tolerable soil and situation, planting 

 loill be found preferable to sowing, if strong and healthy plants be used, 

 and such as have not been too much drawn up by the heat of the nur- 

 sery, taking care to cut them down, after the second, or much better, after 

 the third year, when they have been established m the ground. 



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