A novelty is offered in Carmody's sectional extension water heater. This novel point is thus described: "It is adjustable, being in sections; its power can be increased or diminished at will. To illustrate this advantage, we will suppose a florist, with limited means, builds a small house that requires but little heating power. He can get one of these boilers composed of five or six sections, at a small cost; and should he afterwards enlarge his house, he has but to add one, two or three more sections to his boiler, and thus supply the necessary additional heating capacity at but small additional expense. Again, should any one find, on trial, that this boiler is too large, he has but to remove a sufficient number of sections to reduce its heating power." Whether there may be disadvantages with this novelty, may be a question, but it will at least attract attention from those who welcome horticultural improvements.