For many years our department has stored 
formaldehyde-fixed human brains in 30% alcohol,
for later dissection. The fluid level needs to
be checked occasionally, but there has never
been trouble with moulds, and there is no
smell of formaldehyde (something that made 
neuroanatomy an unloved discipline in earlier 
times).
-- 
-------------------------------
John A. Kiernan
Department of Anatomy and Cell Biology
The University of Western Ontario
London,   Canada   N6A 5C1
   kiernan[AT]uwo.ca
   http://publish.uwo.ca/~jkiernan/
   http://instruct.uwo.ca/anatomy/530/index.htm
_______________________________
Colleen Forster wrote:
> 
> Histonetters,
> 
> I have been asked to post a question:
> 
> A museum has tissue samples for teaching stored in 10% formalin. They
> are wondering what other solution they might be able to use that would
> be less toxic. This would take the place of the formalin for long term
> storage. I believe they take the samples out for demonstration so
> putting them in a plastic is not an option.
> 
> Any suggestions????
> 
> Colleen Forster
> U of Mn
> 612-626-0436
> 
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