After some educational experiments in overtasking the capacities of his vinery with other plants or too many vines, the cultivator will probably come to the conclusion that seven vines on a side are enough for a 40 foot grapery, and that it is not best to have any interior vines. A small central portion may, however, be divided into concrete compartments two feet deep, and as many square, where dwarfed vines may be fruited to test a new variety or seedling, or to root freely for transplanting. The brick compartments paved with concrete will prevent these vines from interfering with those in the border, and facilitate a change of soil when needed. Such compartments will contain three or four times as much earth as is contained in the ordinary crocks, and the vines will need less care.

In one half of a 40 feet vinery (the other part being new) I ripened this year over 500 bunches of grapes, two Black Hamburgh vines producing 75 clusters each, which matured perfectly. The first fruit cut was on the 15th of August, and some still on hand laid away on paper in a cool room are plump and fresh, with an occasional berry passing into the raisin state. This shows the advantage of glass; a well-ripened, good out of door grape being usually obtainable in the northern states not before October. The past season has opened a new era in grape growing, well-ripened Catawbas being abundant in all our city markets. A few more years, and we shall have still better varieties equally cheap and plentiful. People seem to dread laying down their vines, from not knowing how flexible they are, and how easily it may be done. A vine that will occupy two rods on a trellis or wood-house in width, (like a lady's crinoline,) can be folded up, and need not occupy more than two feet of space when arranged for its winter covering. Few vines are so stiff that they may not be bent close to the earth without, injury : some notched stakes made of the staves of an old keg, a little earth, and a few leaves, (not too many, or they will heat,) and the whole thing is done.

The trimming being done, as it should be, beforehand, twenty minutes of labor will dispose of a very large vine for the winter; if the trunk crowns up a little at the base, a wheel-barrow full of earth will reach it. The 1st of November is a good time to lay down vines both in-doors and out, taking them up in a vinery in this latitude, the latter part of March, and out of doors the latter part of April. There is also some misapprehension as to the quantity of artificial heat required by a cold vinery; seldom if ever is any required in the daytime, and fifteen or twenty fires, sometimes less, will carry the vines safely through the season. One good fire in the evening, and the stove refilled with wood, and ventilation excluded, will secure immunity from frost. Although a cold vinery, where the vines are taken up in April, will frequently do well without any fire heat whatever, yet a central stove and flue is desirable, and removes all anxiety on the subject.

I find syringing the vines not necessary where sufficient evaporation is supplied. When it is done, the evening or some warm, cloudy day is the appropriate time, and not the morning. Any drip followed by hot sunshine will scald and mar the beauty of the foliage.

A grapery such as I have described, if properly built, is good looking enough for any one who does not aim at the fanciful or highly ornamental. It should stand with the ends north and south, the glass catching the morning and evening sun, and will give the proprietor great satisfaction if rightly managed. The rules for so doing, he will find in the manuals on vineries, and experience will teach him their correct application.

[Comparative estimates of the expense of growing native and foreign grapes are very much to be desired; the erection of cold graperies will receive no cheek in consequence. The increase of vineyards and graperies will be greater than ever before. The native grape, however, in its improved and improving forms, is destined to be the grape for the masses in this country. We shall attempt, in one of our grape articles, to give both sides of this question in a fair and candid manner. If you can build such a house as you describe, complete, for $400, you can do more than we can in New York. We can build one for less money, but not of your materials. Why not put a fixed roof on your house? It is very much better, besides being cheaper. So, too, in other respects you could add to the value of the house without increasing the expense. The aquaria cement we have used largely during the past two years, and consider it far superior to putty for all glass structures. The cost is about the same. We advise you to try it. - Ed].