two cents worth, slightly off the track

Karnovsky's fixative combines the two - formaldehyde and
glutaraldehyde.  You get the faster penetration of form. followed by
the slower, better preservation of glut? Good for preservation of
structure, not normally good for immuno.

Keith Ryan
reincarnated as of last April !!
managing the Electron Microscope facility of
The Marine Biological Association of the UK
Plymouth, England
but employed by the University of Plymouth
on a "special" contract!