Wise-ones,

I once met a bloke at a conference who told me that he had been
investigating the distribution of the arteries and veins in one of the
major organs (I forget which one).  He described the staining proceedures
he was using to me and said that the stain coloured the arteries blue and
the veins red.  This impressed me to no end, but I walked away from him
without asking what the name of the stain or combination of stains
was/were.  Now he may have been pulling my leg, this sort of thing does go
on at conferences, but I would like to know if any of you out there have
heard about or used a staining technique like it.  Also, if it turns out
that he was pulling my leg, does anyone know of a good stain that will
allow me to differentiate between the arteries and veins in wax sections.

Darren.

P.S. If you are the man who pulled my leg, I demand an apology.