palladio--book-ii,chapter-iii

''... the lavatories are at the side of the stairs and, although they are in the body [corpo] of the building, do not smell much because they were put in a place away from the sunlight and have some vents, leading from the bottom of the pit through the thickness of the walls, that let out at the top of the house.''

palladio, the four books on architecture; translated by robert tavernor and richard schofield.