Heat Front Below

The Scientific American says, that in the Garden of Plants in Paris, houses are heated by water obtained from an artesian well 1800 feet deep, which at that depth has a temperature of 82° Fahr., and warm water is carried in pipes under the soil, and that a salad garden at Erfurt is heated in the same way.

On Heather In The United States

Such is the title of a small pamphlet by E. S. Rand, Jr., which possesses a very peculiar interest, since, in our opinion, it is fairly shown that the true Scotch Heather (Calluna vulgaris) is found growing indigenously in the United States. The precise location is Tewskbury, Mass. Attention was first called to the subject by Mr. Dawson, who exhibited the plant before the Massachusetts Horticultural Society as "Native Heath." Mr. Rand, as Chairman of the Flower Committee, very naturally had his interest deeply awakened, and, iu company with his associates, thoroughly investigated the. matter, an account of which we have in the present pamphlet. The Flower Committee was fortunate in having such a gentleman as Mr. Rand for its chairman. The indigenous character of this Heather is endorsed by Prof. Gray, rose of our most distinguished and thorough investigators.

Heating

I have adopted a plan of my own for warming the vinery, which I think is an improvement on a simple stove. It consists in having a brick casing around the iron, some two inches from it, and covered with fiat stone, leaving a small air chamber above the stove. Openings are left below for the entrance of the cold air, and beneath the stove in the upper course of brick are similar openings for the exit of the heated air. These upper ones I have had made to open obliquely, those on the east pointing southeast, those on the south southwest, on the west northwest, etc The advantage of this arrangement I take, to be, that the bricks prevent a hot stove from doing any injury to the vines; that the heated air is thrown off from the chamber with considerable projectile force in a rotary and spiral manner, and thus having a tendency to intermix the entire atmosphere of the vinery, and prevent the existence any where of cold or dead air.

The Heavy Wooded Pine. Pinus Ponderosa

The Ponderous or Heavy Wooded Pine is another variety like the last-named, of comparatively recent introduction. It is also of a stately habit, with long leaves of a rich yellow green color. This as well as Bentham's Pine attain a very large size when fully grown, and are therefore adapted only to positions where room can be given them in future years. We do not know how well they may bear pinching or rubbing back to reduce their size and increase their compactness, but judging from their habit, doubt the value of such practice with them.

[to be continued.]

Hebe

A fine light salmon edged with white, and mottled with peach and light carmine.

Hebeclinium Janthinum

A very beautiful, free-flowering stove plant, bearing large trusses of bright lavender ageratum-like flowers, which remain in perfection for several weeks.