Up: Interactions in Colloidal Suspensions:
This work was supported by the National Science Foundation,
by a Fellowship from
the David and Lucile Packard Foundation, and by
the Swiss National Science Foundation.
We are grateful for enlightening conversations with
Eric Dufresne, Vladimir Lobaskin, Roland Kjellander,
Roland Netz, Stuart Rice and Binhua Lin.
David G. Grier