Later improvements, such as a midden closet built in Nottingham, used a brick-raised seat above a concave receptacle, to direct excreta toward the centre of the pit--which was lined with cement to prevent leakage into the surrounding soil.
Later improvements used a brick-raised seat above a concave receptacle, to direct excreta toward the centre of the pit --. This was such as a midden closet. This midden closet was built in Nottingham. This brick-raised seat above a concave receptacle, to direct excreta toward the centre of the pit--was lined with cement. This was to prevent leakage into the surrounding soil.