The season for operating is, generally, when all the brood has matured and left the cells. The exceptions are when there are not bees enough to protect the stores; it may then be necessary, immediately after the failure of honey. Col. H. K. Oliver, of Salem, Mass., is said to be the inventor of the fumigator, an instrument to burn fungus (_puff-ball_). By the aid of this the smoke is blown in the hive, paralyzing the bees in a few minutes; when they fall to the bottom, apparently dead, but will recover in a few minutes, on receiving fresh air. THE FUMIGATOR. I am indebted to a communication from J. M. Weeks, published on page 151 of the Cultivator for 1841, for this method. The description of the fumigator that I constructed will vary a trifle from his, but will retain the principle. I obtained a tin tube four inches long, and two in diameter. Next, I made a stopper of soft wood, three inches long, to exactly fit one end of the tube when driven in half an inch, and secured it by little nails driven through the tin. Through the centre of this stopper I made a hole one-fourth of an inch in diameter. To prevent this hole filling up, the end in the tube was covered over with wire cloth, made a little convex. The end of this stopper was cut down to about half an inch, tapering it from the tin. For the other end a similar piece of wood is fitted, though a little longer, and not to be fastened, as it must be taken out for every operation. The outer end of this is cut down into a shape to be taken into the mouth, or attached to the pipe of a bellows. (I fitted them in the turning lathe, but have seen them fixed very nicely without.) It could all be made of tin; but then it is necessary to use solder, which is liable to melt and cause leaks. [Illustration: FUMIGATOR.] "The puff-balls must not be too much injured by remaining in the weather, and should be picked, if possible, just before they are ripe and burst open. When not thoroughly dry, put them in the oven after the bread is out." When used, the cuticle or rind must be carefully removed; ignite it by a lamp or coal (it will not blaze in burning), blow it, and get it thoroughly started, before putting it in the tube. Put in the stopper, and blow through it; if it smokes well, you are ready to proceed. When it does not burn freely, unstop and shake it out. The dry air is much better than moist breath at the commencement. DIRECTIONS FOR UNITING TWO FAMILIES.