What are the directions for planting a belt of evergreens to screen one from his neighbors? There is in Downing's work, and through the Horticulturist, a lack of definite information as to the size and number of trees, and the distance between them. Can you give me a rule for a place of five acres, with a front of between two and three hundred feet? M. P.

No better evergreen screen can be planted, for your purpose, than either the Norway Fir or the American Arbor Vitae. If the first is employed, it will take considerably more space in your premises than the second, as the Norway Fir spreads its lower branches to a considerable extent; if this is not objectionable, plant them four feet apart, and when they have attained the required height, cut off the leaders annually, bring the whole to a conical shape, and you obtain a superb screen. If space is an object, employ the Arbor Vitae; plant two and a half feet apart, and keep them well sheared to give a thick habit. If your climate admits, and the plants are to be had, a Juniper hedge, well kept, is extremely ornamental. We say nothing of the holly, because it is probably too slow in its growth, and as yet it is not to be had in quantities, though from the demand for the seeds the past season, it is evident that many are now turning their attention to its cultivation. Our correspondent is mistaken in stating the absence of this kind of information in former volumes of the Horticulturist - see, for instance, vol. ii. p. 492. 1848.