The blight comes Instantaneously on them, so that in 24 hours or less a fine, growing, healthy tree, or a portion of it, will be transformed into a black unsightly mass.

I have examined different authors on the subject and cannot determine whether it is fire-Night or not Ton would oblige me by giving your opinion of it in the next number of the Horticuiturist and let me know if anything can be done to prevent it.

I have had Swedish Turnips on a part of the land for two years, and the leaves are also affected at a later period of the year by becoming yellow and withered, when the turnips stop growing. Is it caused by the nature of the splf, or is it something they require ? On the top of the bank, where It Is a dry shifting sand, the trees are not so liable to this blight, as on the low mucky ground. A. Young. - Port Samia, C. W,.

As near as we can judge from your description, the malady complained of is the flre-blight, so-called. It is generally believed that trees growing on low, rich, damp soil, are more susceptible to the attacks of this blight than those on dryer and poorer soils. We have met with no proofs of this, however, in our own experience. "We can suggest no remedy but that of promptly cutting away the affected part down to the sound wood, in all cases where it is discovered before the whole tree is affected. When this is the case, destroy it immediately, root and branch.

There has appeared on my Elm trees a species of insect, which causes a hollow ezcrefleence on the leaf; with an aperture on the under side leading into 1t This hollow chamber Is filled with purple colored lice. If yon know of a cnre or prerentive, yon win confer a favor by making It known through the HorticvUurisL I Inclose yon a specimen. Gno. J. HUGEES. - Ohathom Pa.

The excrescence is the work of a species of gall-fly. The only remedy we know, is to destroy.

I wish to make a statement or two, and ask a few questions, requesting answer for my own and others benefit: We have this season lost many of our Pear bods on the Angers Quince. They were set the early part of September last, on thrifty stocks, went into winter quarters in fine condition, and appeared to be all right, until about the 10th of March, when I noticed the tops of some of the Quinces showed signs of shrinking half way down. About the 15th, the mulching was partially removed, as roots began to strike out above the ground. On the 18th the weather came off very cold, and continued to freeze for three days in succession; the thermometer part of the time was down to 18°. About this time I noticed a change in the appearance of some of the buds, they becoming dark colored. On examination I found they were discolored inside. On the 26th, 26th, and 27th, it froze hard, the thermometer reaching" 18°. On the 80th the thermometer stood at 70° in the shade. At this time the bark of some of the Quinces was shriveled from the top to the ground; others were only slightly injured. During last autumn and winter, and March and April, very little rain or snow foll. A few days in January it was severiy cold, with strong winds. The thermometer indicated 22° below aero.

What should have caused the destruction - hard freezing weather in the winter, or removing the mulching too soon with the late freezing weather, or the continued dry weather, or, in part, all? (1) The excessive cold winter and severe spring handled our budded Cherries unmercifully. Last fall was a very warm one, and vegetation continued to grow freely, and until the first frosts, which was severe freezing weather, I noticed the extreme tops, of Cherries in particular, were injured by the sudden check. Some varieties did not form terminal buds, such as Napoleon Bigarreauy Downer's Late, Dacenport's Early, Tradeeeant's Slack Heart, Burr's Seedling, American Amber, Bavmarte May, and White Heart. The Duke and Morrello families, and some few varieties of the Ileart and Bigarreau formed their terminal buds. After the extreme cold weather in January I noticed the bark on the south side of our early Cherry trees was shrivelled and dark colored to the wood; as spring approached, it extended downward and around. By April the extent of the injury was more visible - many were dead below the intersection with the seedling.

The Mazzard and Mahaleb stocks, where very rapid and late growth occurred, suffered equally with some of the budded varieties - those with terminal buds suffering the least, in fact but little. Should the fast growing have been headed Back in August, or later? (2) Last year's buds did not wholly escape unscathed, and of those varieties above named as not having formed terminal buds, the loss was the most severe. We lose Pear and Cherry buds in the spring by some insect eating out the center Just as the bud begins to start. The ant (of which we have not a few) is charged with it It may be some other insect Have yon any knowladge of what it may be ? (8) Late frosts have destroyed most of the fruit in this section. Lawn ELLSWORTH. - Napiertille, Du Page Co., Iu.

(1) The high wind in January, with the the thermometer at 22° below zero, was a sufficient cause of the injuries to the stocks; but the buds must have suffered more from the cold iu the latter part of March, after the mulching was removed and roots had begun to form.

(2) Stopping in August will aid materially in ripening the shoots. "We practice it here with a few tender sorts; but you will insure the greatest safety by planting on your poorest and thinest soils, and above all in sheltered situations. No nursery work can be successfully carried out in Illinois, without shelter.

(8) Doubtless some sort of beetle; the ant is innocent.

Feeling entirely confident that you are compotent to give information respecting all subjects connected with horticulture, I solicit 70a to give me a little Information respecting the following matters through the columns of your valuable Horticulturiss.