Note 29 — X. CLEANLINESS OF ROOMS AND WALLS.

Atmosphere in painted and papered rooms quite distinguishable.

I am sure that a person who has accustomed her senses to compare atmospheres proper and improper, for the sick and for children, could tell, blindfold, the difference of the air in old painted and in old papered rooms, cæteris paribus. The latter will always be musty, even with all the windows open.