A correspondent writes: " If you will publish something that will save my roses from the deliberate slaughter of these murderous pests, which have nearly destroyed my large and choice varieties of beauties, I shall deem the information cheaply purchased by paying for half a dozen copies. Tobacco, and smoke, and sulphur, and lime, and plaster, and woman's tears, and men's imprecations, are alike harmless to exorcise those miscreants which 'plague mankind.*" A hard case, certainly. We have heard of all these remedies before, except " woman's tears.'* Where they fail, the case is almost hopeless; but you might nevertheless try a mixture of whale-oil soap and lime; and if you wet the foliage thoroughly, and repeat the dose two or three times, you can hardly fail to succeed. Tou might also try the "Gishurst Compound."

"If you will publish something that will save my Roses from the deliberate slaughter of these murderous pests, which have nearly destroyed my large and choice varieties of beauties, I shall deem the information cheaply purchased by paying for half a dozen copies. Tobacco, and smoke, and sulphur, and lime, and plaster, and woman's tears, and men's imprecations, are alike harmless to exorcise those miscreants which 'plague mankind.'" - Horticulturist, 1860, p. 443.

By the rose-grower the slug is justly considered as one of the most obnoxious pests he has to contend with; and if not carefully guarded against, it is sure to blast the hopes and high expectations he may have cherished all the winter long, of the pure and unalloyed delight in store for him during the rose season, when every bush, the picture of health and careful cultivation, is heavily laden with beautiful buds and magnificent full-blown flowers. But often, alas! when such hopes are about to be realized, it can only be said, "The spoiler came; and all thy promise fair Has sought the grave, to sleep forever there".

There does not seem to be any thing in the case, however, so discouraging as to deter him from persevering in his delightful employment, as the means of prevention and of cure are within the reach of persons of moderate means. Not to say any thing of timely applications of whale oil soap and Gishurst Compound, which latter composition, by-the-by, is a very certain remedy, we have another to propose, which may appear ridiculous to some from its simplicity; yet still, upon the testimony of competent witnesses, it can be vouched for as a complete preventive and an effectual cure. It is simply pure water: but water mechanically applied.

A box sufficiently large to suit the requirements of the establishment where it is to be used, mounted upon a four-wheeled carriage, and a force-pump attached, with rubber hose, say eight or ten feet in length, is what we have seen used with the most satisfactory results. In regard to the mode of operation, the bushes ought to be syringed twice or thrice a week, from about the middle of May until about the middle of July, when the slug season may fairly be considered to have closed. But even with this mode of treatment, it need not be wondered at if some make their appearance upon solitary bushes. Should they do so, all that is necessary is to apply as much power to the pump as to be certain of the water reaching every part of the plant with force enough to drive them aways and that can easily be done, as, with the hose sufficiently long, the operator can get at them on every side, and under the leaves as well, which is of the utmost importance, as it is there chiefly the depredators ensconce themselves for safety.

As a precaution against permitting the fallen enemy from regaining his lost position, it is well to rake the beds as soon after each watering as practicable, as by this means their destruction is made doubly sure.

In addition to keeping the plants free of slug, it will appear evident that other benefits are conferred, for which they will not be ungrateful. A regular supply of water is highly advantageous to roses during the early part of summer, especially in situations where the soil in which they grow is light and sandy. In ordinary cases, however, it is safest to water with a gentle hand, as the young foliage of roses, as well as other plants, suffers greatly from every kind of rough treatment. This will appear evident to any one the least acquainted with the structure of leaves, whose innumerable stomata and delicate external coverings, plead, and plead earnestly, for far other treatment than they often receive.

However simple the method herein recommended may appear, no harm can be done by giving it a trial. Should your last year's correspondent be one of those, you, Mr. Editor, would not hear any more complaints from him of disappointment and grief at the destruction of his favorites.

[Here is a very simple and practicable method of treating the slug, not only for our correspondent, but for all others: a remedy "without money and without price." Let it be tried. We have no doubt that the Gishurst Compound will also be a certain cure. - Ed].

Eliza, (Brooklyn, N. Y.) A decoction of tobacco, about the color of weak black tea, thrown on the under side of the leaves of your roses, will destroy the stugs. Repeat it twice, just at sunset, and you will get rid of them - otherwise they entirely devour the leaves, leaving only the skeleton.

The Rose-Slug #1

Dear Editor:- I have just noticed an article in your February number, recommending water, " mechanically applied," as a remedy for the Rose-Slug, and which you nail with scripture as being a remedy " without money and without price." Of course you refer to the water portion, overlooking the expense of a "box mounted on a four-wheeled carriage, and a force-pump attached, with rubber hose eight or ten feet in length".

I have great faith in water as well as in Veitch, who is a man of large practical experience, and I would be the last in the world to throw cold water on any suggestion of his; but as these said appliances may not be easily procurable by many who delight in cultivating the Queen of Summer on a small scale, like myself, and knowing that you can not have too many effectual remedies suitable to the various means and necessities of your numerous readers, I beg to suggest another,, which to you and the profession generally can not be new, but which may be of service to some of my own class - amateurs.

There is no doubt as to the good effect of water applied as directed by friend Veitch, but with the necessary accompaniments it is not cheap, to say nothing of two persons being necessary to work it. "Gishurst Compound" is also good and effectual, and also not cheap; "on the contrary, quite the reverse," as well as dangerous if injudiciously applied.

My remedy is neither dear nor dangerous; is easily and quickly applied, a few applications only being sufficient; whereas, the water-system is a tri-weekly labor of two months' duration.

Your inquiring correspondent of last year says, "Tobacco, and smoke, and sulphur, and lime, and plaster, and woman's tears, and men's imprecations are alike harmless to exorcise those miscreants which plague mankind;" but, I ask, in what shape or form was tobacco used? Certainly not in that of snuff, my simple remedy, which I have never found to fail. Not such as is sold by tobacconists to those who are led by the nose, but the refuse or sweepings of the snuff-mill: equally pungent it is, and much cheaper. For twenty-five cents I buy from Loril-lard more than sufficient for a season, and I grow about a hundred plants. I use a common dredger or pepper-box, about three inches in diameter, giving the first dusting, just enough to slightly color the foliage, as it opens, and always early in the morning when bathed in dew. Unlike water, it remains, keeping guard against the enemy till washed off by heavy dew or rain, when it may be repeated.

From the first application till the flower-buds begin to burst - when it becomes no longer needful - I am outside the mark when I say that I have not applied it over six times any one season; four, I believe, being nearer the truth. So you see the trouble is little, the expense trifling, and the result all that can be desired.

Whatever the pest may be, slug, thrip, or red spider, that so utterly destroys the foliage, and consequently the bloom, I know not; but, be it either or all of them, I now consider the evil perfectly under control - the victory complete.

There is, however, still another enemy to look after. Notwithstanding these pungent dustings, I have, but only in very few instances, found "a worm in the bud." Whether it is that I had missed dusting the bud attacked, or that the caterpillar - for such it is - can stomach the weed, deponent saith not. I only state the fact to show the need for keeping an eye on the buds.

To those who adopt this remedy I promise healthy plants throughout the season, being fully confident of the enemy beating a hasty retreat the moment you are found to be "up to snuff".

["Of course," Mr. Standard, we only referred to the price of the remedy itself leaving each one to count the cost of applying it. Not a few already have the box and hose, and to such the application would be cheap enough. But that does not in the least detract from the merit and cheapness of your remedy, which we can well conceive to be a first-rate one; indeed, we know it to be so; but how many will apply it before the slug has put its mark on each individual leaf? Watch the first appearance of the enemy, and take him, like time, by the forelock. - Ed.] .