The smell of books...in a bottle?

Mostly, I'm just boggled--is this aimed at people who don't actually own books?
http://smellofbooks.com/aromas/

Need a really complete list of Dewey Decimal System Numbers

I'm refining my e-library, but I'm still having trouble finding the DDSN for various subjects, such as alchemy, codes, and cryptography (although I have found the numbers for Halloween 394.264 and tie-dye 746.6). Does anyone have a link to an exhaustive online list of subjects and their numbers?