Show HOW BOOKS ARE INFECTED disinfected DIS method employed in france Is said to be the most successful yet devised the danger of contagion from books that have been in the hands of persons suffering from various diseases has led to the invention invents ion of methods of dis infecting of alch mallch none appears to be more effective than that devised by a member of the municipal council of paris this process consists of two features in the first place the books are placed in a beater where a strong current of air opens every leaf and an aspirator sucks out the dust and deposits it in aseptic water then they are arc suspended in a the covers being bent back and held by clips so that the leaves are widely opened and placed over a heater which for a long time subjects them to a temperature of degrees fahrenheit ren heit the paper Is not damaged and the efficiency emcie ncy of the process Is said to be well demonstrated |