In a former number of the Horticulturist, I detailed some experiments in progress for rejuvenating an orchard of old apple trees, by trenching, special manuring, and cleansing the bark by scraping, washing, etc. etc, (vide Horticulturist for March last.) Another season's growth has passed, and the results having become so apparent and decisive, I hasten to notice them, for the benefit of others similarly possessed.

These trees are from twenty to twenty-five years old, originally forming a part of a large orchard, now merely divided by a division fence, the general aspect and condition of all being alike. They have now had two season's growth since my applications began, and marvellous are the results.

Not deeming in the onset, the fruit in its varieties, of the least possible value, being extremely small, knotty and bitter, at the same time unrecognisable, and aiming only to make the trees available, I grafted each season, about one-third of the top with choice kinds.

By these processes a thorough metamorphosis has taken place. The growth of both new wood and grafts have been extraordinary, while the foliage which before was small and sickly, and usually fell off at mid-summer, has in every way changed; becoming large, beautifully green and full of vigor, while their neighbors on the other side of the fence, untouched by art, and left to nature's skill, are denuded prematurely of their foliage and seared by neglect.

From the impetus given their growth by the stimulating cultivation they have received, the crop in quality - particularly in numbers - this season is but small, while the fruit itself has become entirely changed in all its characteristics. Before, no specimen could be recognized - while now from amid the ruin, we find the Porter, Ribstone Pippin, Golden Reinette, Golden Sweeting, Swaar, Twenty Ounce, Detroit Red, and other varieties in the perfection of size, form and color!

From forty trees, some of which bore but a few specimens, thirty barrels of picked fruit have been marketed, reserving some thirty bushels for home use.

Thus while we hear of various persons cutting- down old apple orchards and delighting in the blazing fire that does not "snap," I feel amply repaid for the expense and labor in the successful experiments I have thus made in the saving of what was deemed useless cumbrances, and producing therefrom a balance fully equal to twenty dollars each.

It is far easier to cut down and despoil a tree, than to replace one. So long as the tree is not radically diseased and rotten, but simply neglected, moss covered, and unpruned - its fruit in the mean time degenerated until all its characteristics of size, form, color, and flavor are changed, such trees may by judicious methods be so restored as not only to be profitable in their own fruit, but as stocks for grafting, forming if desirable entirely new heads.

Already have Some of my grafts (two years old) began to bear, while all have taken such start that in a few seasons the whole tops will be blossoming with the Northern Spy, Wagener, Melon, Baldwin and other valuable kinds. Thus assuredly, aside from present pleasure and profit, ten years of time has been gained.

Yours truly, W. R. Coppock.

Longsight Place, near Buffalo, Nov. 17,1851.