I need not enumerate all the different varieties used and planted out to keep up this succession - some of the principal are in the order of enumeration, Troth's Early, Early York, Early Ann, Yellow Rareripe, Red Rareripe, Malacatoon, Morris' White, Old Mixon, Rodman, Ward's Late Free, Maiden, Free Smock, Late Rareripe, Heath, Algiers' Winter, etc. These trees are generally obtained for about six dollars per hundred, from approved nurserymen in Delaware and New Jersey, and the rearing of them constitutes a distinct business of itself. They are produced by planting out the peach stones, or pits, in the spring, which have been slightly covered with earth in the fall, so as to be exposed to the action of the winter's frost. The sooner the pits are put in the sand or earth after the fruit is matured, the better - they should never become dry. The shoots from these stones are budded in August of the same year, from four to six inches from the ground. The ensuing spring all the first year's growth is cut off above where the scion has taken - not, however, until it is well developed - when, in the fall and following spring, they are ready for transplanting or sale.

The mode of preparing the ground for them is precisely that with us of the Indian corn crop - the earth is well ploughed, and from thirty to forty bushels of lime are spread upon it to the acre. The trees of like kinds, for the convenience of picking, are then set out in rows at distances varying from twenty to thirty feet apart, according to the strength of the soil; a crop of corn is then put in and cultivated in the usual way, and this is done successively for three years; by this time the trees begin to bear. The cultivation of the corn being the proper tillage for the trees, and this crop amply paying for all investment in trees, etc. After the trees commence bearing, no other crop ot any kind should ever be grown among them, as I have known two rows of potatoes between a row of peach trees not only to affect the fruit, but seriously to injure the trees; but they should be regularly ploughed some three or four times in the season, just as if the corn crop was continued. So obnoxious in our country is the peach tree to the worm, or borer - the cegeria exitiosa - that each tree in the orchard should be examined twice a year, summer and fall - say in June and October - by removing the earth down to the roots, and killing with a pruning-knife every intruder - then scraping the injured bark and removing the glue.

Thus exposed, they should be left for a few days, when the earth should again be replaced with a hoe. The limbs should be only moderately pruned or thinned out, so as to admit the sun and air, avoiding in the operation leaving forks, which incline them to split when burthened with fruit.

When the peaches ripen, they should be carefully picked from step-ladders, seven to eight feet high, into small hand-baskets, holding one peck each. Our operators for this purpose are both men and women, who earn from fifty to seventy-five cents a day, besides being found. These baskets are gently emptied into the regular market baskets, which are all marked with the owner's name and strewed along the whole line of orchard to be picked. As these are filled they are put into spring wagons, holding from thirty to sixty baskets, and taken to the wharf, or landing, where there is a house, shed or awning, for the purpose of assorting them, each kind by itself, which is into prime and cullings - the prime being distinguished not only by their size and selection,, but also by a handful of peach leaves scattered through the top. They are then put on board the boats in tiers, separated by boards between, to keep them from injury, and so reach their destined market. We consider a water communication from the orchards, or as near as may be, most essential, as all land carriage more or less bruises or destroys the fruit. Our roads through the orchards and to the landings are all kept ploughed and harrowed down smooth and even.

The baskets for marketing the peaches are generally obtained in New Jersey at twenty-five to thirty-seven dollars and fifty cents per hundred. With trifling modifications our culture and practice may be made to suit not only the Southern but the South-Western States. I may here, perhaps, properly remark, that the average life of our trees is from nine to twelve years, when properly cared for and protected as I have described; that the two great and devastating enemies the trees have to contend against are the peach worm and the yellows; the first readily yielding to the knife and the treatment of semi-annual examination; the latter being a constitutional, consumptive, or marasmatic disease, for which no other remedy is as yet known or to be practiced but extirpation and destruction. There are many theories and some practice recorded on this, by far the most destructive enemy of the peach tree. I may hereafter give my own views on this particular and obscure disease. I concur, however, with Mr. Downing, of Newburg, that the great and prevailing disposition of the peach tree in our climate is to over production of fruit in favourable seasons.

Our remedy for this is carefully to thin it off by plucking all those that touch, or are within two or three inches of each other, when the size of hickory nuts, which are thrown into some running stream or into the hog-pens to be devoured. This mode ' of heading in, or pruning one half of the producing buds, is new to me, but which I have just tried upon my garden trees in the city, and will be able to speak of experimentally, hereafter. With us in Delaware, as everywhere else, the peach tree succeeds best in a good soil. That preferred is a rich sandy loam, with clay. Many of my finest trees and choicest fruits are grown in a loose and stony soil. The trees should never be set out in wet, low, or springy situations, and for the same reasons, high and rolling ground should be selected for your plantations, and for the additional circumstance that they are less obnoxious to early frosts".