Show thermometers PROTECT OLD DOCUMENTS the new archives building at washington is an interesting example of how temperature control can protect valuable records excessive moisture in the air may cause molding in stored papers and documents extremely dry air and high temperatures make piper brittle and decrease its life to a marked degree thermostatic thermometers will hold tie the temperature pera ture at 70 degrees F during the winter and 80 decrees during in the summer in addition to temperature control devices government records are protected from f acids a in in the atmosphere abrasive ri dust and daylight all of which contribute materially to the deterioration of paper |