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FARM-HOUSES AND OFFICES
apartment above, a ventilator should be made on the roof, co-vered with weather boarding, and communicating with theceiling of the milk-room by an inclosed box or case formedbetwixt the scantlings, with openings both on the under sidenext the ceiling, and on the upper side to the ventilator inthe roof. Where there is an apartment above, the case inthe ceiling should have openings at the ends through the walls,with wire-cloth coverings. Two of these cases should be madein the ceiling, with two openings to each from it, about onefoot square, perforated with holes or covered with wire cloth.The ceiling should be eight feet high at least, and close lath-ed and plastered free of the roof scantlings.
The shelves are erected all round the milk-room, and areusually twenty-four to thirty inches broad ; the first shelf isabout six inches above the floor, and the space between it andthe pavement is closed along the front by means of a board ;the second is about the height of a table. The under shelf orstand should be of stone or paving bricks, the same as thefloor : the upper may be either of stone or wood : if of stone,it will require a thin covering of wood in winter to keep offthe cold from the stone. Between the shelves, and for twofeet above each, the walls should be lined all round with po-lished flags, to admit of frequent washing: but where theexpence of white glazed tiles is allowed for this purpose, theyare much handsomer, and have a more cleanly appearance.
As the utmost degree of cleanliness is essential for a dairy,a plentiful supply of water will at all times be necessary;and, it will be found highly convenient, to have a cisternplaced above, or near the ceiling of the scalding room, intowhich the water may be raised either by a pump, or by a pipefrom a higher reservoir. From this cistern a pipe may beconducted to the boiler, with branches to wherever water iswanted *.