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Fig. 2
cask, or hogshead. B and C are false bottoms, fitting in perfectly tight, but perforated with 1-inch holes; B should be covered with Canton flannel, and C with canvas, and above the canvas with flannel. A space of fourteen inches should be left between the false bottoms B and C, and this space filled in with carded cotton, regularly piled up, so that it will be uniform in thickness all over, but pressed in very tightly all around C. (See "Cognac Filter.") E is a bag, made of Can-