If too much vapor rises, cork the tube, Make the tube also to index the depth of water by a float - a piece of cork with a small stick fixed in. it, and rising through the tube; but it might be supplied from the outside by another tube, and a tap to empty the water may be applied. But I see no use in that, as the lid is not fixed in the present case; it fits like the lid of a teakettle, and as closely, so as to let off no steam or vapor, and the raised rim of the lid projects an inch beyond the edge of the box. You begin in February, and, when you leave off in summer, the whole should be opened, and receive a coat of paint, and there is no occasion to draw off the water by a tap in the mean time. The tin box rests on the bottom of the wooden bos without anything between them; but the two-inch spaces at the sides and ends should be filled up with sand to the level of the sand on the lid. The end of the tube for heating passes down through both the boxes, and ends with a funnel head to receive the jet, and there is a 'nest' for holding a lamp. The wooden box stands five or six inches from the ground, on legs, after the manner of a chest of drawers.

The sashes to cover with may be like garden-lights, or in one piece of stout glass let into a zinc frame, to move 'off and on; or the top may be hinged on and locked, like a desk; and, as I said before, the whole may be made to suit a drawing-room, where it would 'work' just as well as anywhere else. It is not calculated for the open air".

A to E, 2 feet 8 inches. A to C, 1 foot 2 inches. C to E, 1 foot. D to E, 2 feet 7 inches. X, door for lamp.

A Boiler. B. Steam chimney, opening into the middle of box through the zinc tray. C C C. Zinc tray. D D D. Outer cover to boiler, through which the heat is conveyed from the lamp round the boiler, and the smoke out througn E. H. Tap to draw off the water.

In a subsequent article, Mr. Beaton says: "My anticipations about the success of this simple method of striking cuttings on a small scale, are more than verified already. From the middle of last February - the only time left to Mr. West for testing the practicability of the contrivance - he has been unremitting in his experiments with cuttings, plants, and seeds, under a lock and key. He has simplified the contrivance, and lessened the expense of working it with oil or gas, His own lamp will burn twelve hours without trimming, and heats the Case just as easily as the gas; but still, a jet of gas is more handy, and less trouble.

"We have discovered another very important use of the Walton an system; it may be successfully applied as bottom and top-heat to a Wardian Case, full of orchids, or of any other section of plants - Ferns, Alpines, and all; a portable hothouse system, in fact, which will do for the top and bottom-heat equally well at the same time. The whole family of Anaectochilids and Phymrads may be grown in a drawing-room by this means, in a close Wardian Case of the highest finish, just as easily as in an orchid-house* By the vapor tube yon may admit as much moisture as the air will hold; or, by corking it, the heated air inside might be rendered sufficiently dry for a Melocactus or a Mammillaria. You may fix on the proper degree of heat which will best suit your Wardian Case, from 40° to 65° or 10°, or more, and with a cominon lamp, quite out of sight, the required degree is kept up nobody knows how. I should not wonder to see one of them at work in the Crystal Palace. If I wished to push the Wardian Drawing-room Case into the world, I would place one or two of them there, to be heated to the right pitch by the Waltonian system of bottom and top heat.

With the Waltonjan Case for propagation, you cannot have the cuttings too close, but, if you raise seedlings in it, they must have fresh air as soon as they are up".

A. Gas jet under the funnel head. B. Coll of zinc tub a, one inch in diameter. C. Lid covered with sand. D. Pots of cuttings or seeds. E. Vapor tube. F. Smoke or smell tube*.