D. F. F., Leavenworth, Kan., asks: "What would you recommend for heating a small conservatory 8 x 12 in connection with a library 12 x 16 on same floor."

[For so small a conservatory, the same arrangements which heat the room could be modified to warm the conservatory also. Usually these conservatories are much exposed to the weather. They should have wooden shutters for cold nights, and all leakages of heat closely stopped. Keeping the cold out is a greater art than supplying the waste from within. A properly protected conservatory of the size named could easily be heated from the room. - Ed. G. M.]