As the season for these approaches, I beg to suggest the use of water ones to gardeners. Dung hot beds are troublesome, especially those required in action for a length of time, as fruiting beds for melons, cucumbers, tomatoes, etc.,. I think the double arrangement best, as it possesses the advantage of being workable in all kinds of weather. The spaces, d, of course need not be excavated unless desired; but I think it best to do so; they can be used for growing mushrooms, sea kale, rhubarb, or asparagus, without bottom heat; or, by running the return pipe around again, can be turned into forcing beds for the same.

A Board bottom supported upon Joist upright* and cross pleces.

A Board bottom supported upon Joist upright* and cross pleces.

There should be slides in the edge of the heating chamber c, to open at night or in bad weather, to equalize the top and bottom heat.

[The above suggestion is a good one. We have put up and are putting up hot-beds on about the same principle, the difference consisting chiefly in the mode of heating; and in this respect the difference is small. To those who can afford the first cost, the arrangement is a good one, and will prove satisfactory. To others, we recommend the excellent plan of making hot-beds described elsewhere by a "Jersey Market Gardener." - Ed].