One Thousand Ways to Make Money by Page Fox

447. THE VENTILATED MATTRESS.--Housekeepers take pains to air their

beds, but the mattress remains for years a mass of unventilated feathers or hair, and a fruitful soil for the deposit of disease germs. A kind of honeycombed mattress might be constructed, through the holes of which the air could circulate freely. It might be possible on this plan to have the spring and mattress in one piece. _Section 6. Money in the Cellar._