As this doesn't relate directly to eBooks, I decided to post this in the Lounge.
A research team hopes that in the future a book's history will be able to be determined
non-invasively from its smell, perhaps via a hand-held sniffing device.
Discover Magazine:
http://blogs.discovermagazine.com/80...mes-a-checkup/
Analytical Chemistry:
http://pubs.acs.org/doi/abs/10.1021/ac9016049
Determining a book's age is important in planning for its long-term health, because as
Wired.com noted, "Paper produced until about 1850 was made to last for millenniums," but new texts, using techniques like rosin sizing that increased the acidity of paper, don't have this longevity.