The Hawthorne, (three varieties,) Buckthorn, Privet, White Lilac, Purple Fringe, Sassafras, and Moose Wood or Striped-bark Maple, are very ornamental. The two last are natives ; the Privet is also occasionally found growing in the woods.

These, with a few shrubs, - the Carolina Large-Flowering Syringa, Common Fragrant Syringa, Persian Lilacs, (purple, white, and cut-leaved,) Tartarian Tree Honeysuckle, White-Flowering Honeysuckle, Purple Fringe Tree, Privet, Dwarf White Horse Chestnut, Indian Currant, (red fruit,) Snow Berry, (white fruited,) Bloody-twigged Dogwood, Japan Quince, (scarlet and white,) Spiraea (half dozen varieties).

* Our suggestion corresponds with the teachings of Mr. DOWNING, see pages 100 and 110 of the work yon refer to. The same principle is taught by every good landscape gardener and < landscape painter. Horizontal lines and flat roofs make a better picture when relieved by erect, conical or c headed trees. We shall soon offer some illustrations on this head.-ED.

And with the following evergreen trees and shrubs - Hemlock, the finest of native Evergreens and the best for grouping; Norway Spruce, equal to the Hemlock, but as it grows large must be used sparingly, and looks best standing by itself on the lawn; Black or Double Spruce; Arbor Vitae; Red Cedar; Virginia Red Cedar; Sweedish Juniper; American Holly; Common Laurel; American Rhododendron (Rhododendron maximum); and Mahonia or Holly-leaved Berberry, grouped on the lawn, and bordering the entrance road and walks, a small place may be made very attractive, and, as you remark, page 62, a better effect produced than by the use of a few large trees like the Elm.

I would add to the above, two deciduous trees, the European Larch and the Virginia Cypress, which, in summer, have the appearance of evergreens.