Good point. In general pay attention to old stuff. Pathogens can be chemical or organic. And indirectly, there seems to be agent spread on books you get from a

Good point. In general pay attention to old stuff. Pathogens can be chemical or organic. And indirectly, there seems to be agent spread on books you get from amazon too. I have an old 80s english CS book that smells too bad, so much i get a light headache. (not too far from what you get from some made in china plastics). It may be anti-fugal treatment.