A number of canaries are kept in an upper room, and it is assumed that a method of heating it during the winter months is required. The accompanying illustration shows a method of heating it by a coil dropped in a fireplace. There is every probability that one2-in. pipe round will suffice; or, if the room be small, a 1 1/2-in. pipe may do, supposing that a temperature of 55Q will be sufficient when the temperature outside is below freezing point. The coil in the fireplace (somewhere below) can be of 1-in. pipe, and this size of pipe will do from the coil to the room. Most probably a pair of pipes in the fire will do as shown, but this depends on the size of room and the pipe in it. The fire pipes (scarcely a coil) should be in a sitting-room grate, not in the kitchen range; then the coil gets attention regularly according to the weather, and there need be no stopcocks or controlling device. If the fire has small fuel put on it at night, it will keep alight better than the kitchen fire will. A small cistern will be required for feeding the apparatus, as shown. This can be replenished by hand. There must also be a steam pipe on the highest point of the piping in the room.

All circulating pipes ascend from the coil to this steam pipe at least lin. in 10ft.; the pipes must not run quite horizontally.

Warming Bird-room.