Plot Data Points in boxplots

Paul Murrell a ??crit :

You might also like to take a look at Figure 3.27 
(and associated R code) on
http://www.stat.auckland.ac.nz/~paul/RGraphics/chapter3.html

Thank you very much for making this page available.
The power of R graphics, and the number of options,
makes such examples very useful.
(At least for beginners like me !)
Thanks.