In the last October number of your paper, I gave a word or two on mulching orchard trees. Those trees stood in a grass meadow which was mowed for hay - of course unploughed, and the mulching was substituted for the ploughing. As the trees, invigorated by the mulching, had made good growth, and fearing that the repetition of that process alone would not answer the purpose the present season - the mulch being removed early last fall, for fear it would harbor the mice about the roots, and thus destroy them, early in May I put to work the plough, with a pair of stout oxen, and a careful driver - the latter more particularly to keep the oxen from goring the trees. Setting the plough, with a good coulter to it, (to cut the sod instead of tearing it,) into the ground at six feet back from the tree, and as near within line of it as would lay the furrow against the trunk - say twelve to. fifteen inches - I upset the sod six to eight inches deep, and gave four furrows on each side, eight in all, throwing out the plough at six feet beyond the tree - the same distance as it was let in.

The plan worked to my entire satisfaction. I measured young wood on many trees last Saturday, (21st of June,) which had made nine to eighteen inches already, and-still growing vigorously, while the grass all over the meadow is large and heavy, thus giving the trees all the advantage of an entire ploughing to the field. The sods are not turned fiat; but perhaps, at an average, two-thirds over, so that the rains and the air can penetrate the open earth, and reach the roots freely. This sod operates as a perfect mulch also - for what is better than a rich, heavy up-turned sod about a tree? The fruit, too, hangs well, and promises large growth.

You may possibly expect me to say a word of my trees planted a year ago, of which I also gave an account in October. Owing to the heavy snows of last winter the mice nibbled many of them, and quite destroyed eight or ten of the 1,200 planted. The land where they stand was all ploughed last fall, at an average of nine inches deep, and in April following sowed into spring wheat, oats and barley, and seeded into grass for meadow. Owing to its being in grain, and in consequence, subject to the depredations of mice while growing and harvesting, I dared not trust the mulching around the trees. Still they are growing remarkably well, many of them already having made a foot of wood up to this time.