(1)A sufficient number of cells for all purposes should be provided in every jail. Each cell for solitary confinement should have a yard attached to it where the occupant can have the benefit of fresh air without the means of communicating with any other prisoner; suitable means for ablution and sanitation should also be provided, '(2)Cells intended for separate and cellular confinement should have a general yard in which the occupants can wash themselves, be fed in association, allowed to take exercise or relieve nature.(3)The outer door of every cell yard should have an eye-hole at a convenient height so that the occupant can be seen without knowing that he is being observed; the cell door should be iron grated.
