Not more than four.
Or single-bed wards might be arranged in groups of four.
Also, it must always be borne in mind that four beds mean eight
patients. There are two patients to each bed (unless it is meant to kill
the infants) to use up the air, which is besides used up by a
necessarily far larger number of attendants than in any general
hospital. For, during the time the mother is incapable of attending to
the infant, the infant is incapable of attending to itself. Also, an
exhausted mother, and feeble, almost lifeless infant, cannot ring a bell
or make themselves heard. Indeed, an infant which cannot cry is in the
greatest danger.