While on the subject of Roses, we may here repeat the following on propagating this flower by layers, from the "Country Gentleman":

June, or one-seasoned roses, are to be met with in almost every garden. It will take a long time to drive them out of the fields, with perpetuals and other roses, nor is it desirable. A rose is a rose, and many of the June roses are exceedingly beautiful and fragrant. These and Perpetuate are mostly (or readily) propagated by layers. The middle of July is considered about the best time - method of procedure similar to any other kind of layers, as follows: Select shoots eighteen inches or two feet long; cut off the leaves close to the shoot about two-thirds of their length, leaving them on at the top of the layer. Bring the shoot to the ground to ascertain the place to make the hole to receive it. If the soil is not good, take out a hole sufficient to hold a peck of made soil, which should contain plenty of sand. Then tongue the shoot, i. e. introduce the knife just below a bud, and bring upwards, making about a one inch length cut; place a small piece of stick to keep the tongue open; then use a crotched peg to keep the layer in its place in the soil. By October or November the layers will be rooted, and may be transferred to the nursery row, or any other position desired.

The stoutest rooted ones may even be potted to force early into flower. e. s.

"How Plants Grow," is the title of a new book by Professor Gray, intended as a popular introduction to the study of Botany. It has also "A Popular Flora" attached. We know no writer who is so lucid as Dr. Gray, and we trust that his new publishers now placing his works before the world in a popular form will be rewarded. Ivison & Phinney, New York.