The boiler in the suburban kitchen is generally one of two kinds, and is either of the low-pressure order, which has no system of circulating pipes, or the high-pressure species, which has and which requires more elaborate care than the former. If the low-pressure boiler is the one in use, and the frost is severe, it is better to completely empty all the pipes in the house, and to cut off the water supply to the house entirely, drawing the water from a supply-cock fixed just before the water enters the house, whence it can be obtained by hand as required. Of course this adds a great deal to the work, but it means safety, for when the boiler is kept well filled it cannot burst, neither can pipes freeze if there be no water in them to bring about this very disagreeable state of things. A low-pressure boiler having a lid that comes off, can always be hand-filled easily, while cans of water must be placed wherever one is accustomed to use water freely; and though baths may be curtailed and work increased, no damage or danger can ensue. Therefore the moment a frost sets in, cut off the water from the house, and rely entirely on the hand-filling of the boiler for all domestic purposes. If the boiler is a high-pressure one, we must be very vigilant from the first moment a frost appears, while we must be ready for it long before it really arrives. The first thing to see is that this boiler is supplied with a safety-valve and a supply-cock; and the second thing to do is to have the principles on which the safety-valve is constructed so explained to us by the man who supplies it, that we shall always be able to ascertain in a moment if it is in working order, or if it is not. For safety-valves are possessed of a demon habit of being out of order when they are least expected to be, and we may be priding ourselves on the fact that we have one, and are therefore quite safe, when the wretched thing may be refusing to work, and we may be on the very brink of the catastrophe we have intended it to avoid for us. Safety-valves differ so very much that it would be impossible to describe here how a house-mistress can ascertain if her own special valve is all right or all wrong. The only thing she can do is to have written instructions from the man who supplies it. These instructions, the plan of the pipes and special rules about what to do in a severe frost, should be in a small book kept among the housekeeping books, and easily get-at-able in case the frost should occur when the mistress was away from home, or if she were ill or in any way unable to attend to it herself. If the supply pipes cannot be got at and protected from the frost as a whole, it is best, once the tanks in the roof are full, to cut off the supply entirely from the main. In this case the local authorities must be communicated with, and the tanks filled by the Local Board by means of a stand-pipe, and great care must be taken both to see