OK, BBM2 just managed to register his vote in time, and tips the result to aristo @ 19 with:
Dow securities as attractive mutual holdings (8,5)
Congratulations to aristo and commiserations to emrach for your near miss.
Your prize is an educational piece that you may find entertaining - Dogs teaching chemistry.
http://www.youtube.com/watch?v=_M9khs87xQ8
btw GK I am very impressed by your acquaintance with London dispersion forces - one of the more obscure types of chemical bond.
Well done to all entrants!