What's that Stuff?

I stumbled onto an interesting collection of articles titled What's that Stuff? from Chemical & Engineering News published by the American Chemical Society. Items covered include ice cream, silly putty, monosodium glutamate, kitty litter, etc. I didn't find an index on the ACS site, but the following Goggle search should do the trick: site:http://pubs.acs.org/cen/whatstuff/stuff