"J. S.," Wilmington, Del., inquires: "On Colonel Dupont's place is a large greenhouse full of flowers, with a large rose bed at the warmest end. The greenhouse is heated by a flue near the fire. The flue is over two feet from the wall. Could I put the oil and sulphur on the wall to kill the mildew on the roses? No danger of the sulphur to burn at that distance? Would the mixture do any harm to the flowers? If not, what kind of oil is used? An answer through the Gardeners' Monthly will be thankfully received".

[Linseed oil and sulphur, as a remedy for mildew, has only been used in our experience on hot-water pipes, and we cannot say what would be the result from painting the wall 2 feet from the flue. Without the actual experience it would be difficult to guess at the result, except that it could not possibly be injurious.

In regard to the use of this remedy on hot-water pipes it must also be borne in mind that there is a peculiar odor from the wash on pipes, which is objectionable to some. It is not disagreeable to the writer of this, nor perhaps to many others, but all persons are not constituted alike. In a gentleman's or lady's conservatory, where persons of varied tastes are expected to enjoy themselves among the odors of flowers, we should doubt the expediency of one unvariable odor from sulphur and oil, and should prefer the sulphur remedy alone without the oil. - Ed. G. M].