l adapted to growing
purposes, but as a matter of beauty and economy we give the preference
to the fixed curvilinear roof.

The engraving is a view of a Plant House, erected by us for Mr. Geo. H.
Brown, on his beautiful estate of Millbrook, near Washington Hollow,
Duchess County, New York. The plan of the house gives two nearly equal
apartments, one to be used as a propagating and forcing house, and the
other as a conservatory or show house for plants and flowers. Both are
heated by the circulation of hot water and can be worked independently
of each other. Such houses add very much to the attractions of a country
estate, and impress a stranger with a higher degree of taste and
refinement, while the owner has added very much to his luxuries and
enjoyments.

DESIGN No. 9.

[Illustration: FIG. 27.--_Perspective View._]

[Illustration: FIG. 28.--_Ground Plan._]

In this design we give a small Green House which has been erected in a
substantial and permanent manner. The Green House is quite small, being
only 20 by 30 feet. It is intended to keep bedding plants, Camellias,
Oranges, and similar things, during the winter, and also to propagate
such plants as may be wanted for bedding purposes on a place of moderate
dimensions. This house runs east and west. Its position was determined
partly by the nature of the ground, but mainly by the propagating bed.
_Fig._ 28 is the ground plan. The large compartment is nearly twenty
feet square. The potting-room, which is at the west end of the house, is
eight by ten feet, and is fitted up with desks, drawers, and other
necessary conveniences. The furnace pit, at the same end of the house,
is eight by eight feet, and contains ample room for coal. The house is
heated by two four-inch pipes. The large compartment has a side table
for plants. On the north side of the house there is a propagating bed,
the bottom heat for which is supplied by a hot-air chamber. This hot-air
chamber is formed by simply inclosing a portion of the iron pipes. In
the plan there is a large table in the centre of this compartment; but
this was not put in, the owner adopting the suggestion of setting his
large plants on the floor of the house; a very excellent plan in itself,
but which was subsequently very much marred by filling in the whole
floor of the house to the depth of six inches with coarse pebbles, to
the injury, we think, of the subsequent well-being of the house. The
idea was, an appearance of ne