The disinfection of letters: defense measures against epidemics.
Meyer
K
K
D015709:Correspondence as Topic / Q000266:history*; D004196:Disease Outbreaks / Q000266:history* / Q000517:prevention & control; D005060:Europe; D005651:Fumigation / Q000266:history*; D049668:History, 15th Century; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049691:History, Medieval; D006801:Humans