Darren,
		I would suspect that the glycerin is there to
1.	to counteract some of the hardening nd shrinkage that occurs in the
alcohols and
2. as an additive to counteract the evaporation of the alcohols.
However, glycerol is very expensive and I expect that because of this it is
rarely used in automatic processors.
Barry


At 10:31 PM 8/27/70 +1100, you wrote:
>I was speaking to a friend of mine, whom works at Liverpool Histo and he told
>me that apparently Glycerol is added to 100% ethanol station or stations in
>the tissue processor. Would anyone know why. I've never heard of this. Cya
>
>Darren
>
>Electron Microscope Unit
>St. George Hospital
>Kogarah NSW Australia
>
>