SO much has the intercourse between Canada and the United States increased of late years, that we might naturally suppose a knowledge of what such near neighbors as the British across the line are doing horticulturally, would in some mode find its way to our homes. But so entirely without that kind of information did we find all who were questioned about it, that we determined to see for ourselves. From the tropics visited last season, it would afford a fine contrast of climate; we expected little, for the trees of a cold climate must be limited in comparison. But do our cousins on the other side of the St. Lawrence take an interest in our pursuits? Consulting the publisher, we found a most respectable number of readers of the Horticulturist, and taking staff and scrip, we entered on the long career of railroads and steamboats, and their great and little discomforts, to talk with these unseen friends. The reader shall hear how we sped.

We found many on the route still eager in the pursuit of beauty; planting, gardening, or watching the grape and fruit house. Wodenethe was more beautiful than we had ever seen it; the quiet fruition of judicious and tasteful outlay was most apparent; the evergreens, old and new, were in their loveliest spring apparel; a "ribbon garden" of verbenas carried out that beautiful assorting and blending of five colors which we had almost despaired of seeing; it was a thing accomplished; hundreds of plants, each color in a row, are arranged in the form of a ribbon hastily unwound; the effect is highly artistic and gratifying.

At Utica, diverging a short distance southward, we found the Clintonians around Hamilton College pursuing rural art, under the auspices of a society for the purpose, with an eagerness that is making its mark rapidly on the College grounds, as well as the private gardens of the members. Our correspondents, the Rev. A. D. Gridley and Professor Edward North, are in the full career of garden enjoyments; Professor Root and many of their neighbors are not less enthusiastic, active lovers of the fine art of landscape gardening.

At Trenton Falls, the proprietor, Mr. Moore, is as great a devotee to trees as ever, and cannot be persuaded to destroy a single specimen so bountifully planted by nature in his lovely domain; his house is still a favorite, and no wonder, for it offers every comfort, and is full of artistic adornments, brought together by a liberal and excellent taste, making it one of the most agreeable summer resorts in America.

Niagara Falls reached, we found the American side greatly increased in population, hotels, manufactories, and all sorts of invasions on the grandeur of the scene. Were the Falls not on so grand a scale as to defy the art of man to destroy them, they would not so long have survived the taming hand of commerce. As it is, they build factories and workshops, disfigure this noblest temple of nature by showy hotels within the sound of the cataract, and have had the bad taste to attempt grand dinners, with music and frogs as part of the bill of fare, where one would fain be content to worship the ever-recurring song of the waterfall, or the bending of heaven's own bow, and where silence in such a presence would best become the pigmy, man.

Little or no cultivation in the way of gardens has been attempted by leasees or landlords; a proper feeling still preserves Goat Island unharmed of its hardy growth, and we trust it will long be left to nature's own handiwork.

On crossing to the British side, it is usual to hear the exclamation, "What a beautiful garden!" The Clifton House has this merit, but if you examine a moment, it owes its character mainly to its shaven lawns; there is no attempt at variety, or even much planting; good mowing and well-kept walks give an air that, we are sorry to say it, makes it seem, by contrast, so neat for a publican's grounds, as to induce the general admiration we have alluded to.

There is less attempt at a grand display of dining paraphernalia, but quite as much comfort here as on the American side; and were it not that some of the gas-burners were also leakers, the traveller would find the Clifton, with its full view of the Falls, an excellent temporary home.

Buffalo and Black Bock. These places may now be classed as one great city, for the streets connect, and wide avenues bordered by extremely hand-• some houses, tell the story of accumulated fortunes; comfort and independence seem to smile from every portico; the grapery, conservatory, and green-house are of frequent occurrence. A hasty interview with valued correspondents here was all that we could indulge in; but we never shall forget the view of the port of Buffalo, as a steamboat launched into its broad and noble expanse, and bore us onwards to Chippewa and the Falls. We shall endeavor to confine our remarks to topics adapted to this journal, but where there is so much to observe, this is extremely difficult.

The waters of the lakes, at the Falls and in the rivers, have been very high for some months, and the scene consequently is more strikingly beautiful. At Buffalo the rise was variously estimated at from two and a half to four feet above the usual level. This increase was perceptible quite to Quebec. The Rapids of Niagara, the Fall, the Whirlpool, and the entire St. Lawrence, including the Rapids, all exhibit evidence of an unwonted volume of water. This has not been without its effects. A huge rock, breaking the former continuity of surface of the American Fall, tumbled into the abyss below with thundering noise the first night of our arrival; successive disasters of this kind may be remarked by old visitors to the place; but we cannot venture on Lyell's field to prognosticate how soon the fall is to reach Lake Erie.

From the Falls by railroad to Hamilton, of Canadian chief grape celebrity, and thence to Toronto, is accomplished in a brief space of time. Parliament was in session; speakers in robes, and the members discussing the loans and debts of the " Grand Trunk Railway," now the great topic; a passing wag tried to convince a party of ladies it was so named because it was the great conveyancer of the modern grand trunks which people are willing to convey wherever they travel, and which impedimenta seriously inconvenience all parties when a stage coach has to be chartered; we saw a stage so loaded behind with heavy trunks as to throw the front, tongue, passengers and all, upright in the air, to the infinite danger of strangulation to the quadrupeds who were destined to its draft.