The floor of a cowhouse or stable should be formed of hard, impervious material, but should not be so smooth as to be slippery when either in a dry state or wet or coated with cowdung. Blue bricks or tiles having a surface formed of about 3-in. raised squares, and a groove 1/2 in. deep and nearly lin. wide, would be the best material for the purpose; this gives a good foothold when covered with cowdung or other similar matters. Granolithic concrete might be made to assume this surface by inserting ribs of wood wheu laying the concrete and taking them out when it is set. The hardness should be counteracted by covering the floor with a thin layer of straw, peat moss, or other bedding material. The inclination of the floor should be very slight, for physical reasons; lin. in the whole length from manger to gutter being ample.