I share the duties of safety officer for our laboratory.  I must
disagree with the below statement!  This may be the case with this person
but please don't generalize.  I take safety very seriously but I am
practical about it.  

	My suggestions for Vinnie:
		Use disposable knives.  Remove the knife when cleaning the
cryostat.  Change the knife when it needs it.  It is really not practical,
or necessary to change the knife between cases.  As with any sharp the
person weilding the tool should use common sense.  We do not store the
package of knives in the cryostat as they became impossible to separate and
get out of the container.  It only takes a few seconds for the disposable
blade to get cold.

	Jennifer MacDonald

> Unfortunately, my experience with safety officers is not good!  They seem
> to
> be so sure of their solutions, regardless of their experience and
> knowledge
> specific to histology, that they often look foolish.   
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