IT will, no doubt, be well remembered by many, that on the 4th Nov., 1854, there was a severe frost, which entirely destroyed the leaves of the grape-vines in most of the late graperies in this part of the country; and also after the following severe winter, when the plants ought to have burst with usual vigor, that the buds broke weak from excessive bleeding, which proceeded from longitudinal strips along the canes, and this to such an extent that, in some instances, heading back had to be resorted to in order to again get healthy wood, the collective consequences of which were, that some crops were below medium, and others partially injured. So sudden and unexpected was this frost, that it is doubtful if one in ten would have applied fire heat if they had had the means; notwithstanding, there was an opportunity for assailing the principle of growing the exotic grape under glass without artificial heat. Now, while we admit that a temporary heating apparatus is of service occasionally, there is no reason in condemning in toto, as is often done, either this or any other equally economical qualification, when a little foresight and understanding will remedy the expected contingency; and perhaps there could not be a better example than the one now before us to prove the necessity for a gardener to possess some knowledge of the anatomy of plants.

To make this appear plain - - supposing a man, in whom is combined physiological and practical experience, on seeing the wholesale slaughter of the leaves, those sources of assimilation and evaporation upon which, only the day before, he cast such a cheerful look, he would thus soliloquize to himself: These leaves are destroyed too soon, before they have done their destined duty; they have not evaporated so much of the moisture as they would have done provided they had not been cut so prematurely; consequently, it will be best to prune immediately, that the light and air may act upon the surface of the bark more readily, by which the drying process will be somewhat assisted; they must also remain exposed so long as the weather will permit, but with all that can be done, there will be an excess of fluid in the canes, rendering the cells more than usually subject to distension and rupture during severe frosts. Some extra covering will also be necessary, and this placed loosely, so that a free circulation of air may pass amongst the vines.

So far as can be, cold must be excluded, and sudden changes of temperature avoided.

After such severe winters as the last and the previous, he would again reason: With all the care taken into account, it is likely that some laceration of the cells, which are formed longitudinally amongst the vascular tissue, may have occurred in consequence of the expansion by frost of the over-abundant liquid matter contained, and which ought to have been dissipated in the fall, and, to prevent further mischief, it will be advisable to endeavor to obtain an even action oyer the whole structure; this may, in part, be accomplished by keeping the vines covered from the invigorating action of the sun's rays until a few more of the cold "snaps" have passed over, and when the buds can no longer be kept back, instead of tying down the tops as usual, which has a tendency to retard the upward progress of the rising fluid, or rather to compel- it to take a lateral course, (hereby forcing it, while still in a watery state, to ooze out through the sides of the injured cells. The better plan will be to tie the vines up at once, which will assist in enabling it to flow more freely upwards, and over every part alike, the probability being that it will the more surely combine with the stored-up and more solid material, which is intended by nature, at this period, to furnish the substance for fresh cellular matter, and so fill up all interstices in the form of a- mucilage, that will harden after a time, and repair the mischief in the same way as the healing of a wound in the animal body.

In this particular peculiarity there is no occasion to be so exact about tie lower buds, for if the injury that is to be apprehended has been dene, there will be sufficient stoppage to the upper permeation this sea-sonj without any extra curtailment of the plant's natural action, which, when once obtained, will repair all former injury.

This simple reasoning may be thought "small talk1' by some of your readers; but I can answer for it that one crop of grapes, at least, was received in fine condition last year where it was put into practice, while some others in different places showed the lack of it, and it is purposely Bent at the present time to prevent, if possible, a repetition of similar casualities, which are likely to occur from the intense cold of the late winter.

I would add, in conclusion, that many of the cherries and a few other kinds of trees here are being split from the bark to the centre, the whole length of the trunks, by the action of the frost and dry, cold winter winds. (Query, - Is not this the cause of "gumming?")