2068. Windows
The Windows should never be opened at night, but may be left open the whole day in fine clear weather.
2069. Position of Bedstead
Lastly, the Bedstead must not be placed too low on the floor; nor is it proper to let children sleep on a couch which is made without any elevation from the ground; because the most mephitic and pernicious stratum of air in an apartment is that within one or two feet from the floor, while the most wholesome, or atmospheric air, is in the middle of the room, and the inflammable gas ascends to the top.
2070. Cookery for Children