We notice by the reports of the Exhibition, that J. F. Allen, Esq. of Salem, exhibited very fine hot-house grapes in six varieties, as early as the 81st of May. Messrs. Story and Hovey & Co., also exhibited fine grapes - the Wilmot's Black Hamburgh, of the latter, particularly good.

Col. Wilder made a very fine display of 120 blooms of Tree Paeonies - in all 18 varieties of collection of blooms of fine shrubs and herbaceous plants.

At the 6how on the 7th of June, Mr. Allen produced four varieties of Figs in perfect ma-turity - with Hunt's Tawny Nectarine, and a fine new cherry called "Ellen." There was also a good collection of grapes and other fruit from Messrs. Bowditch, Strono, Hovey & Co., and Williams. Mr. Lovett showed 15 mammoth stalks of the Victoria Rhubarb, weighing 24 lbs. Some of the stalks measured 45 inches long. Messrs. Winship showed 12 stalks weighing 16 lbs.

Mr. Downing - Sir: It is a rainy day, and therefore I can now send you my observations of this last winter and spring, with respect to my European grape-vines, and the grafts of European cuttings on the American wild stocks. Generally speaking, the grape-vine cuttings and rooted vines, planted very late last year, (indeed some as late as June, that escaped the great drouth during last summer,) are doing very well, and many of them have a fair average crop and promise well for the future.

The grafts of last year have, like the wild native grape-vines, put out about three weeks later than their parent European stocks; showing decidedly the positive influence of the wild native vine upon the European grafts, since their circulation has been retarded. Their wood is now already loaded with bunches of grapes in their embryo condition. This last February I have grafted about 100 more, and they are already nearly all putting out. To show you the great power of my wild vines, I may simply state that by my method of grafting, I have 31 grafts on one wild stock, and I have another that has sixty European grafts of many kinds.

In your remarks you stated that the grafts would not be influenced by the native wild stock on which I had grafted the European cuttings." So far, my experience docs not sustain your views; and I am glad to be able to say that nature and experience would not support your ideas.

I find that my experiment and views respecting the power of the nurse stock in modifying the habits of the nursling are neither singular great practical writer in his "Ampilographie," or a treatise on the classification of the vine, at page 291, at the article "Raisin des Dames," says: "This magnificent grape of a very beautiful yellow color, with very big ellipsoidal berries, has indeed some failings; it does not bear every year; its beautiful bunches are often very thinly furnished with berries owing to the blight of at least four-fifths of them, and their flavor is not very high; I have found the meant to remedy the blight, (coulure,) and this is by grafting it on a common white Muscat."

I shall add to this statement of facts the opinion of one no less celebrated than I'Abbe Ro-zier, as published in his 10th 4to. vol., page 248, of his complete treatise on agriculture. He says, "Grafting on the vine takes with so much ease, and anasthimoses so perfectly, that no other kind of plant appears better calculated by nature for this mode of improvement (deperfection;) and they would have us believe that this operation deteriorates the quality of the grape while it improves that of other fruit! That is not possible. Graft the Muscat on a Chasselas, and then compare the quality of its fruit to that of the Muscat not grafted, and you will be forced to admit that the produce of the graft is superior; make the same trial with the Mourillon on a Chasselas and you will see that grafting adds to the quality of the grape." These, sir, are very important facts and worthy to be recorded in your valuable publication for the benefit of Horticulture. So you see that I was not so singular in my notions: if I err I am in good company.

I may also state for your gratificat ion, that one of the grafts of last year has on it about 100 bunches of grapes of remarkable sizes, and that the others have bnnches in proportion to their size.

I have just read Mr. N. Longworth's letter in your April number, and the facts he states in it, he had the kindness to communicate to me two years ago. I must, however, and with all due respect for that gentleman's valuable experience, in Cincinnati, remark that his experience and conclusions must be limited and confined to the latitude of his locality. Whilst my vineyard is located 0° farther south, and I may say very near and almost on a level with the ocean. Again my rolling land, the proximity of a river, a calcareous subsoil resting on of it mixed with abundance of oxides of iron and alumina, clay of every possible kind mixed indifferent proportions with gravel and silicious sand, green sand, muck, etc. etc, each and all of which have their share of influence in my trial. [Undoubtedly these are most favorable circumstances, and we shall be glad to hear of your success. Ed.]

Now, sir, you may be able to judge and understand the difference and advantages of my locality over that of the environs of Cincinnati. To the 8° Fahrenheit, at least, difference in the temperature, I may add the warm quality of my soil and its bygroscopicity so favorable to the grape-vine, and which is also the best remedy for the rot. In consequence of it I was able to mature last year, even the Muscat de Frontignan in 145 days after the vine was first planted, and just after a long sea voyage. The minimum number of days, even in the south of France being 140, and the maximum about 160, with an accumulation of 6000° F. in that same space of time, with also the indispensable miuimum temperature possible, that comports with the perfect growth of the vines. See Compte de Gasparius book on agriculture, 4th 8vo. vol. Very resp'ly, Joseph Togno, Principal of the Vine Dresser Model School, near Wilmington, N. C. April 8, 1851.

A. J. Downing, Esq

I enclose Adam's & Co.'s receipt for a box of Catawba wine, which I hope you will receive from me as a slight token of respect due to you for the interest you have taken in the grape culture of the west. Six bottles are Mr. Longworth's sparkling Catawba, (the best of that kind made here as yet by any one,) and six of still wine from my own vineyard, vintage of 1849. I think my vintage of 1850 will be better.

We have ready sale here for the sparkling at $12 per dozen, and for the still at $6, of the best quality of course, inferior at less rates.

The great frost of the morning of the 2d of May, made a general sweep of all the fruits in the west and south-west - with the exception of some parts of the southern shore of Lake Erie, near the lake. A few late apples, (Rawle's Janet,) may be spared to us.

The grapes have fared better, not more than half the shoots being destroyed. Latent buds productive, (or fruit bearing,) I am unable to say. I expect, however, a pretty fair crop - rot excepted.

This frost has proved conclusively, that of all important fruits, the grape is least subject to injury from that cause.

This frost is the most destructive we have had since the 26th of April, 1834, (which was also locust year,) and very similar in its effects; the vegetation was then a little more forward than now.

On the morning of the 2d instant the average range of the thermometer in this vicinity, at 5 o'clock, was about 24 1/2. Very repectfully, R. Buchanan.

N. B. We find here, that a glass or two of the still Catawba at dinner, prevents acidity on the stomach - -and that two or three at the same meal, is very useful to those afflicted with dyspepsia. The pure article is often prescribed by our physicians. R. B. Cincinnati, May 9, 1831.

We are greatly indebted to Mr. Buchanan for his very acceptable present of these wines. In flavor, the Ohio wines very closely resemble those of the Rhine, and the Catawba grape gives a peculiar fruity flavor which is fast gaining the approbation of good judges. About Cincinnati, the shores of the Ohio are thickly dotted with vinevards, and there can be little doubt that the calcareous soil and warm climate of that region will soon give us American wines that will rank with any of the same class produced in the world.

Very few Americans, except those who have traveled abroad, estimate properly the moral value of pure light wines - because pure wines very rarely find their way across the Atlantic.

Containing, as hocks and clarets do, only about eight or nine percent of alcohol, they are far more wholesome than coffee; and the cheap production of such wines will do more to decrease the consumption of ardent spirits, than any other circumstance. Neither law nor morals can be brought to bear on the present age so as to force men to be entirely temperate - but the introduction of wholesome, pure light wines, at a cheap rate will - as there is abundant proof in son, as well as because we look upon it as a source of national wealth, that we regard the successful labors of such men as Mr. Long-worth and Mr. Buchanan, in introducing and perfecting the wine culture, as worthy of the highest public gratitude.

Mass. Horticultural Society #1

At the meeting of July 12th, the following fruits were exhibited.

Fruits, From James Hyde & Son, Cherries - probably Bigarreau Noir.

From Marshall P. Wilder, Cherries - Seedling. Bigarreau Noir tarditif, Bigarreau Noir, Downer's Late Red, superior.

From Winship & Co., Cherries - Bigarreau Noir, (?) Downers Late Red.

From Jonathan Maun, Cherries - unnamed, probably Elkhorn; Raspberries.

From Cheever Newhall, Raspberries - Kne-vet's Giant.

From Azell Bowditch, Raspberries - Kne-vet's Giant; Grapes - Black Hamburgh, and Black St. Peters.

From Samuel Sweetzer, Raspberries - Kne-vet's Giant.

From J. W. Foster, Raspberries - Knevet's Giant, fine.

From Breck & Co., Grapes - Black Hamburgh, fine; White Chassclas.

From Messrs. Hyde, Cherries - Hyde's New black seedling.

From E. C. Grant. Strawberries - Newland's Alpine and Monthly Alpine; Raspberries - Knevet's Giant.

From II. B. Stanwood, Cherries - Downer's Late Led, very fine.

From Otis Johnson, Cherries - Sweet Mont-morenei, Florence, Black Eagle, superior; Napoleon Bigarreau, fine, and seedling.

From George Walsh, Cherries - Seedling No. 1, 2 and 3, fine.

From J. F. Allen, Grapes - Garden Tokay and Black Hamburgh; White Hamburgh, very fine; Cannon Hall, superior; WhiteFrongtig-nan, very fine. Peaches - Late Crawford, extra size, superior; Tippecanoe, New-Jersey, Gros. Mignonne, Old Mixon. Nectarines - Violet Hatif. and Boston.

From J. P. Cushing, Esq., Grapes - Black Hamburgh, very fine; Syrian Bunch, extra size; Muscat of Alexandria, very fine; White Frontignan, superior. Melons - Bcachwood and Persian, both very fine.

From William Batchelder, Cherries - Downer's Late Red?

From Galen Merriam, Cherries - Downer's Late Red? very fine.

From Josiah Lovett, 2d, Cherries, Spachaus, Honey Hearts. Raspberries - Knevet's Giant, superior.

From Henry Vandine, Cherries - Elkhorn, very fine.

Named. Grapes - Gros Bleu; Victoria, very fine, and Muscat of Alexandria. From J. S. Sleeper, Cherries - Seedling. For the committee. J. S. Cabot, Ch'n.