Dr. Valk, of Flushing, Long Island, informs us that the Oleagnus parviflorus, sometimes called the Bohemian Olive, proves to be a hardy shrub in his garden. The following extract from his letter will interest our arboricultural readers:

"I would bring to your notice a very fine plant in my garden - and I believe a very rare one on this side of the Atlantic - the Oleagnus parriflorus. I received it when very young from the garden or the London Horticultural Society, and planted it immediately in the open ground, where it has grown to a large bush, and now bears every season a heavy crop of fruit. This fruit is pretty in appearance, and pleasant in flavor. The shrub is a native of Bohemia, and I think might be very much increased in size by judicious cultivation. Its English name is, I think, the Bohemian Olive.

My Deodar Cedar has grown luxuriantly; is now ten feet high, and beautifully feathered to the ground. It has been planted and fully exposed four winters, and is not exceeded in beauty by any of its kindred evergreens." Yours,

W. W. V. -------A Special Manure for Evergreens. - It is well known that most evergreens are impatient of the ordinary animal manures, applied with so much benefit to deciduous trees, and the zealous cultivator is often at a loss to know how to urge the slower sorts of firs, pines, etc, to a more luxuriant growth.

We have experimented a little on this subject, and think we have found a most valuable stimulant for all rare evergreen trees in ornamental plantations.

Two years ago, the Lodi Manufacturing Co., Liberty-st., New-York, (whose excellent pou-drette, we have already recommended,) sent us for trial a cask of "manure for shrubs and trees," requesting us to make trial of it. It presents to the eye the appearance of a finely pulverized gray powder, and is quite dry to the touch. We applied it to a variety of trees and shrubs; in the majority of cases it seemed to act simply as a good manure, with no effects in any way remarkable. But to our surprise it acts mosts distinctly and beneficially uponall evergreens. Pines, Firs, Deodars and Spruces, that had made but a feeble growth for some seasons, when liberally dressed with this mixture, put on a darker green and made more luxuriant shoots than they had ever done preperceptible in the darker hue of the foliage, and now, at midsummer, in the greater luxuriance of the growth. We have no hesitation in recommending this "manure for shrubs," as a capital top-dresser for evergreen plantations, and as an especially valuable manure for using in the process of transplanting evergreens.

We understand it consists of a small quantity of poudrette, and a considerable portion of mineral manures adapted to the growth of trees generally.