to a bushel of malt, and the beer is to be fully equal in strength to London porter, then eighteen gallons to the bushel may be considered as the general estimate; and for this purpose the first mash is to receive twelve gallons of cold soft water, which will produce nine gallons of wort. Having stirred the malt very carefully, light the fire under it, and get the liquor quickly to 170 or 180 degrees of heat. This may be ascertained by lifting off the lid, and dipping the thermometer from time to time into the centre F, and keeping it there a minute to give the quicksilver time to rise. While the mash is coming to this heat, stir the malt well three or four times. When the liquor has acquired its proper heat, put out the fire, and cover the whole of the machine with sacks, or something that will exclude the external air. In this state the mash remains for two hours: the cock is then turned, and nine gallons of wort will be drained off. Put the wort into a tub of some sort, and keep it warm. Then put into the machine twelve gallons more of water, rekindle the fire, and bring the heat to 170 degrees as soon as possible; when this is done, extinguish the fire, and let the mash now stand an hour. Draw off the second wort; and if only one sort of beer is wanted, add it to the first quantity. Now take out the grains, lift out E, clean it well, and also the inside of C. Replace E, put the hops into it, and the whole of the wort into the machine. Cover it with the lid, light the fire a third time, and bring the liquor to a boil as soon as possible. Let it boil a full hour with the lid off, and boil briskly all the time. The use of the centre F will now appear; for the machine being nearly full to the brim, the bubbling takes place in the centre F only, where there are no hops. There is a great boiling over in this centre, but the liquor sent up falls into E, and so there is no boiling over of C. When the full hour of brisk boiling has expired, put out the fire, draw off the liquor, leaving the hops of course in E. The liquor is now to go into shallow coolers; and when the heat is reduced to 70 degrees, take out about a gallon of the liquor, and mix it with half a pint of good yeast. Distribute it equally among the different parcels of wort, afterwards mix the whole together, and leave the liquor till it comes down to about sixty degrees of heat. The next removal is into the tun-tub, in which capacity C, without the addition of E, will serve very well. While the liquor is cooling, remove the spent hops from E, the stove pipe from B, the ash-receiver from the bottom. The machine remaining now as a tun-tub, draw off the liquor as soon as it is down to 60 degrees; or take it out of the coolers, pour it into the tun-tub, and put on the lid. If the weather be very cold, or the tun-tub be in a cold place, cover it with something to keep it warm. Here the fermentation takes place, sometimes sooner and sometimes later; but it generally